Term ends Nov 17, 2026 · Medium confidence

Computed 20-year base term

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

Held by Apple Inc.

Filed Apr 19, 2018 as application 15/956,959 · Granted Dec 3, 2019

Base term, 20 years from filing

Today

20 years from filing

Term ends Nov 17, 2026

2006 2026

Clock starts
Nov 17, 2006

Term ends
Nov 17, 2026

Granted
Dec 3, 2019

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 8,234,392, US 9,953,391, to Nov 17, 2026. The term already ends on or before that date, so the cap shortened nothing.

1 of 1

Maintenance fees paid

One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it 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. 1 of 1 maintenance fees is paid so far. 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 Nov 17, 2006, when application 11/601,497, the earliest non-provisional in its chain, was filed (this one was filed Apr 19, 2018); a parent in its chain could not be resolved (the next row)	Nov 17, 2026	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	None on file	no change	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 8,234,392, US 9,953,391)	resolves to Nov 17, 2026, no earlier than this term, so no change	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	1 of 1 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Nov 17, 2026	Medium confidence

This family

US 8,234,392	In force Apr 2031	Apr 2031
US 8,878,857	Grace period ended Mar 2027	Mar 2027
US 9,953,391	Lapsed on the fee record Apr 2026	Apr 2026
US 10,497,086	this patent Nov 2026	Nov 2026

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 2026

Term ends Nov 17, 2026. No further fees fall due before then

Terminal disclaimer

A terminal disclaimer resolved from the filed document, referencing US 8,234,392, US 9,953,391, 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 2019 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.

Methods and Apparatuses for Providing a Hardware Accelerated Web Engine