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US 9,519,681 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Dec 13, 2024 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Aug 11, 2014 as application 14/456,324 · Granted Dec 13, 2016
Base term, 20 years from filing
Today
Lapsed Dec 13, 2024
2008 2028
Clock starts
Sep 29, 2008
No longer in force
Dec 13, 2024
Granted
Dec 13, 2016
Term would have run to
Sep 29, 2028
base term 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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,838,659, to Sep 29, 2028. The term already ends on or before that date, so the cap shortened nothing.
1 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.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Sep 29, 2028: 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. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Sep 29, 2008, when application 12/240,699, the earliest non-provisional in its chain, was filed (this one was filed Aug 11, 2014)Sep 29, 2028High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,838,659)resolves to Sep 29, 2028, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 2 maintenance fees paidlapsed Dec 13, 2024High confidence
Computed term endThe steps above, in orderDec 13, 2024High confidence

This family

US 8,838,659In force
Nov 2030
Nov 2030
US 9,519,681this patent
Dec 2024
Dec 2024
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.
RecordedAssignorAssigneeConveyance
Aug 26, 2016
Reel 39557, frame 923
Tunstall-pedoe, WilliamAmazon Technologies, Inc.Assignment of Assignor's Interest

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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