Also listed on Societe Bic, an earlier holder on the record.

Term ends Nov 3, 2029 · High confidence

Computed 20-year base term

Held by Commissariat a L'energie Atomique et Aux Energies Alternatives

Filed Jan 3, 2014 as application 14/146,766 · Granted Apr 14, 2015

Base term, 20 years from filing

Today

20 years from filing

Term ends Nov 3, 2029

2009 2029

Clock starts
Nov 3, 2009

Term ends
Nov 3, 2029

Granted
Apr 14, 2015

base term fee events Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

None

Term adjustment

No prosecution delay on this record.

No effect

Terminal disclaimer

Resolved from the filed document, referencing US 8,636,826, to Nov 3, 2029. The term already ends on or before that date, so the cap shortened nothing.

2 of 3

Maintenance fees paid

Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.

Family applications on record here

Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 3 maintenance fees are paid so far. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Nov 3, 2009, when application PCT/US2009/063108, the earliest non-provisional in its chain, was filed (this one was filed Jan 3, 2014)	Nov 3, 2029	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	None on file	no change	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 8,636,826)	resolves to Nov 3, 2029, no earlier than this term, so no change	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	2 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Nov 3, 2029	High confidence

This family

Application PCT/US2009/063108	PCT application no patent term	no patent term
US D673,497	In force Jan 2027	Jan 2027
US 8,986,404	In force Oct 2032	Oct 2032
US 8,636,826	Lapsed on the fee record Jan 2026	Jan 2026
US 9,005,344	this patent Nov 2029	Nov 2029
US 9,539,558	Lapsed on the fee record Jan 2025	Jan 2025
US 9,722,268	Lapsed on the fee record Aug 2025	Aug 2025

The applications whose file history this site holds. The family may have others.

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

Nov 2029

Term ends Nov 3, 2029.

Terminal disclaimer

A terminal disclaimer resolved from the filed document, referencing US 8,636,826, ends no earlier than this term, so it caps nothing.

Citations

later US patents cite this one

That is below the median of utility patents granted in 2015 in our data, the only group it is compared against. How we rank

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Hydrogen Membrane Separator