Term ended Sep 21, 2023 · High confidence

Computed 20-year base term

USPTO later recorded it as expired for non-payment on Dec 29, 2025.

Held by Google LLC

Filed Dec 12, 2011 as application 13/323,034 · Granted Nov 26, 2013

Base term plus 31 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ended Sep 21, 2023

2003 2026

Clock starts
Aug 21, 2003

Term ended
Sep 21, 2023

Granted
Nov 26, 2013

base term patent term adjustment after the term ends 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

Days of term adjustment

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

None

Terminal disclaimer

No disclaimer on this record.

2 of 2

Maintenance fees paid

Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 runs 31 days past its 20-year base term on prosecution delay. 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 Aug 21, 2003, when application 10/647,053, the earliest non-provisional in its chain, was filed (this one was filed Dec 12, 2011)	Aug 21, 2023	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+31 days, USPTO patent term adjustment record	Sep 21, 2023	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	2 of 2 maintenance fees paid	term ended	High confidence
USPTO status record	Recorded as expired for non-payment on Dec 29, 2025, after the term ended	no change	High confidence
Computed term end	The steps above, in order	Sep 21, 2023	High confidence

This family

US 8,135,575	In force Nov 2026	Nov 2026
US 8,594,994	this patent Sep 2023	Sep 2023
US 9,477,656	Lapsed on the fee record Oct 2020	Oct 2020

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

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.

Recorded	Assignor	Assignee	Conveyance
Oct 11, 2012 Reel 29114, frame 401	Dean, Jeffrey A.	Google Inc.	Assignment of Assignor's Interest
Oct 2, 2017 Reel 44101, frame 299	Google Inc.	Google LLC	Change of Name

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.

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Alerts on its grants, lapses and transfers.

What's changing

Note

The 31 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is below the median of utility patents granted in 2013 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.

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