Term ends Dec 4, 2027 · Medium confidence

Computed 20-year base term

Why Medium: A parent in the chain could not be resolved.

Held by Percept Technologies Inc.

Filed Mar 9, 2021 as application 17/195,640 · Granted Jan 28, 2025

Base term plus 788 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Dec 4, 2027

2005 2027

Clock starts
Oct 7, 2005

Term ends
Dec 4, 2027

Granted
Jan 28, 2025

base term patent term adjustment 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

788

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

None due

Maintenance fees

This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.

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 runs 788 days past its 20-year base term on prosecution delay. No maintenance fee can end this term early. Confidence: Medium. 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 Oct 7, 2005, when application 11/245,756, the earliest non-provisional in its chain, was filed (this one was filed Mar 9, 2021); a parent in its chain could not be resolved (the next row)	Oct 7, 2025	High confidence
Continuity chain	A parent in the chain could not be resolved	dated from this application's own claim	Medium confidence
Patent term adjustment	+788 days, USPTO patent term adjustment record	Dec 4, 2027	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	No maintenance fee can end the term early	In force	High confidence
Computed term end	The steps above, in order	Dec 4, 2027	Medium confidence

This family

Application 11/245,756	Abandoned not computed	not computed
US 7,758,185	Term ended Oct 2025	Oct 2025
US 7,918,556	Lapsed on the fee record Apr 2023	Apr 2023
US 8,353,594	Lapsed on the fee record Jan 2025	Jan 2025
US 9,010,929	Term ended Oct 2025	Oct 2025
US 9,155,077	In force Sep 2033	Sep 2033
US 11,428,937	Lapsed on the fee record Aug 2026	Aug 2026
US 8,696,113	Term ended Oct 2025	Oct 2025

8 of 62 applications in this family shown, earliest filings first. 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

Dec 2027

Term ends Dec 4, 2027. No further fees fall due before then

Note

The 788 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it. 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.

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