Unified Patent Court procedure guides
When is the deadline for interlocutory revision by the european patent office?
European Patent Office must assess the 2 months source period for this branch. This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome. This page remains a source guide with no computed date. This guide supplies no calculated final date.
- Period
- 2 months. Conditional EPO revision duty.
- Trigger
- date the EPO receives the Application
- Rule
- UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1
Current UPC maintained legal index and amended Rules effective January 1, 2026, with February 2026 corrigendum retained. Agreement provisions are cross-checked against official original and maintained EPO representations. No complete worldwide amendment search or actual application acceptance is claimed.
Source guide · No automated date
Check the applicable procedure
UPC EPO interlocutory revision guide. This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome. This guide supplies no computed date or paid calculation.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1What lawyers say
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When is the deadline for interlocutory revision by the european patent office?
European Patent Office must assess the 2 months source period for this branch. This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome. This page remains a source guide with no computed date. This guide supplies no calculated final date.
Responsible actor. European Patent Office. conditional EPO revision duty.
date the EPO receives the Application
The EPO considers the Application well founded
This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome.
UPC EPO interlocutory revision guide. This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome. This guide supplies no computed date or paid calculation.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1How does this provision count time?
- rectify the contested decision and inform the Court
- date the EPO receives the Application
- For a procedural step, Rule 300 excludes the event day and uses calendar days, named-week anniversary or calendar-month/year anniversary with missing-day clamping. Judicial vacations do not suspend the period.
- This guide states the primary period but supplies no computed date. Its actual branch, authority decision, paired statutory restriction or legal boundary requires separate qualification.
For a procedural step, Rule 300 excludes the event day and uses calendar days, named-week anniversary or calendar-month/year anniversary with missing-day clamping. Judicial vacations do not suspend the period.
This guide states the primary period but supplies no computed date. Its actual branch, authority decision, paired statutory restriction or legal boundary requires separate qualification.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1Which facts prevent one automatic date?
UPC EPO interlocutory revision guide. This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome. This guide supplies no computed date or paid calculation.
The identified actor has the document or event described by this source provision. date the EPO receives the Application must be established. The EPO considers the Application well founded. No final date is supplied without the applicable court location and complete facts.
A different order, actual service event or procedural track applies. This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome. Check that branch separately. Do not reuse another procedure's event or period.
A nominal period falls on a closed day or depends on another actual event. This guide states the primary period but supplies no computed date. Its actual branch, authority decision, paired statutory restriction or legal boundary requires separate qualification. Preserve the stated source period. This guide does not infer a final case date.
Which conditions and exceptions apply?
- Actual operative event
- date the EPO receives the Application
- Applicable procedural branch
- The EPO considers the Application well founded This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome.
- Host-state calendar and complete act
- This guide states the primary period but supplies no computed date. Its actual branch, authority decision, paired statutory restriction or legal boundary requires separate qualification.
- UPC EPO interlocutory revision guide. This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome. This guide supplies no computed date or paid calculation.
- Claimant adversely affected by an epo decision must distinguish lodge an Application to annul or alter the EPO decision under Rule 88.1, measured against service of the EPO decision. Its stated period is 2 months and its branch is required if challenging. That event does not replace date the EPO receives the Application for rectify the contested decision and inform the Court. Patent proprietor must distinguish lodge an Application to reverse refusal of unitary effect under Rule 97.1, measured against service of the EPO decision rejecting the request for unitary effect. Its stated period is 3 weeks and its branch is required if challenging. That event does not replace date the EPO receives the Application for rectify the contested decision and inform the Court. Patent proprietor or epo president must distinguish lodge a Statement of appeal against the standing judge's decision under Rule 97.5, measured against service of the standing judge's Rule 97.4 decision. Its stated period is 3 weeks and its branch is required if appealing. That event does not replace date the EPO receives the Application for rectify the contested decision and inform the Court.
What must the responsible actor complete?
Questions about this procedure
When is the deadline for interlocutory revision by the european patent office?
Who acts on interlocutory revision by the european patent office?
European Patent Office is the relevant actor. The act is to rectify the contested decision and inform the Court. This branch is conditional EPO revision duty.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1Which event starts the 2 months period?
The relevant event is date the EPO receives the Application. The actual event must be established. A catalogue label or estimated event is insufficient.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1What does Rule 91.1 require here?
The primary provision identifies 2 months and the act to rectify the contested decision and inform the Court. The EPO considers the Application well founded.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1How do weekends and holidays affect this UPC branch?
For a procedural step, Rule 300 excludes the event day and uses calendar days, named-week anniversary or calendar-month/year anniversary with missing-day clamping. Judicial vacations do not suspend the period. This guide states the primary period but supplies no computed date. Its actual branch, authority decision, paired statutory restriction or legal boundary requires separate qualification.
UPC Rules of Procedure, Rules 300 and 301What changes this epo interlocutory revision branch?
This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome. An actual order, party agreement or different procedural track requires a separate check.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1Which facts must be checked for epo interlocutory revision?
Check the epo considers the application well founded. Confirm date the EPO receives the Application. Check the actual court location, applicable order and any permitted variation. This is the Office's action period, not the claimant's filing deadline or guaranteed revision outcome.
UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1Official sources and review
Provisions used (2)
| Provision | Purpose |
|---|---|
| UPC Rules of Procedure, amended text effective January 1, 2026, Rule 91.1 | Check the identified procedure, event, counting rule or qualification |
| UPC Rules of Procedure, Rules 300 and 301 | Check the identified procedure, event, counting rule or qualification |