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Patent criticality
The thirty-one months that ended the case
Can a missed national phase deadline be rescued in India?
If a PCT application does not enter the Indian national phase within thirty-one months of the priority date, it is treated as withdrawn so far as India is concerned. Recent Indian authority has treated that timeline as mandatory, and the safest working assumption is that there is no cure.
Why the position is confusing
Before 2016 there were decisions allowing delayed entry as the curing of an irregularity. The 2016 Rules expressly excluded national phase entry from the general extension power, and later decisions held the deadline mandatory.
The 2024 Rules then replaced the general extension power with a broader provision allowing up to six months, and moved the old exclusion list into a different rule. Textually that appears to open a door. In practice the Patent Office and at least one recent Delhi High Court decision have continued to treat the national phase timeline as mandatory and non-extendable, including where the delay was caused by a patent agent.
What to do with that uncertainty
Do not plan around a possible cure. Diarise thirty-one months from priority for every PCT case, with a reminder at twenty-eight months, and treat entry as a hard commitment rather than a decision you can defer.
If a deadline has already been missed, take advice immediately rather than assuming either that it is hopeless or that it is fixable. The position is genuinely contested and the facts matter.
Rule 20(4)(i) and rule 22 of the Patents Rules 2003; rule 138 as substituted by the Patents (Amendment) Rules, 2024, whose scope in relation to this deadline is not settled.
Recent Delhi High Court authority has held national phase timelines mandatory and non-extendable, and has declined to excuse delay caused by a patent agent.
Do not rely on informal accounts of what the e-filing portal will or will not accept.
Treat thirty-one months as absolute. If you want a safety margin, enter at twenty-nine.
Assuming the 2024 rewrite of rule 138 created a general amnesty for missed deadlines.
PCT cases inherited from another firm mid-cycle.
Audit every PCT case in your portfolio for its thirty-one month date this week.
Sources & further reading
- The Patents Rules, 2003, as amended (e-version updated to 15 March 2024) — Official IP India text
- The Patents (Amendment) Rules, 2024 - G.S.R. 211(E), 15 March 2024 — Gazette text via WIPO Lex
Related
National phase
The stage at which a PCT application is taken into an individual country's system. In India the time limit is thirty-one months from the priority date.
Most applications do not fail. They stop.
Very few Indian applications are refused after an argument. Most simply end because a date passed - and because there is no decision to appeal, there is often nothin…
Patent deadlines can always be extended if you pay.
Some can. Several of the most important cannot, or their extendability is unsettled - and an application that misses one is simply treated as abandoned or withdrawn.
Not sure whether this applies to your invention?
The honest answer usually needs someone to look at your actual disclosure, your timeline and the prior art. That is a conversation, not an article.
Educational guidance, not legal advice. This material is published by Ragulika IP for general education and information. It is not legal advice, it does not create a professional-client relationship, and it is not a substitute for advice on your own facts. Patentability, infringement, prosecution strategy and every other IP outcome turn on the specific facts and on the law and Patent Office practice as they stand at the time you act. Please take professional advice before making a decision, and read the underlying provision or judgment before relying on any point stated here.
Last reviewed by Ragulika IP on 2026-08-23. Indian patent law and Patent Office practice change; check the position before you rely on it.