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US 8,019,648 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Apr 30, 2026 · High confidence

Filed Apr 1, 2005 as application 11/098,014 · Granted Sep 13, 2011
Base term plus 513 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Apr 30, 2026
2004 2026
Clock starts
Dec 3, 2004
Term ended
Apr 30, 2026
Granted
Sep 13, 2011
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
513
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,707,039, US 8,005,720, to Apr 30, 2026. The term already ends on or before that date, so the cap shortened nothing.
3 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.
150
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 513 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees were paid, so no fee lapse ended it. 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 Dec 3, 2004, when application 11/004,637, the earliest non-provisional in its chain, was filed (this one was filed Apr 1, 2005)Dec 3, 2024High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+513 days, USPTO patent term adjustment recordApr 30, 2026High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,707,039, US 8,005,720)resolves to Apr 30, 2026, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderApr 30, 2026High confidence

This family

US 7,707,039In force
Jan 2027
Jan 2027
Application PCT/US2005/011085PCT application
no patent term
no patent term
Application PCT/US2005/011084PCT application
no patent term
no patent term
Application 11/097,961Abandoned
not computed
not computed
Application 11/097,093Abandoned
not computed
not computed
US 7,599,844Term ended
no later than Dec 2024
no later than Dec 2024
US 8,019,648this patent
Apr 2026
Apr 2026
US 7,596,269Term ended
Mar 2025
Mar 2025
8 of 150 applications in this family shown, earliest filings first. 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
Oct 19, 2005
Reel 17112, frame 213
King, Martin T.; Grover, Dale L.; Kushler, Clifford A.; Stafford-fraser, James Q.Exbiblio B.V.Assignment of Assignor's Interest
Feb 9, 2011
Reel 25779, frame 251
Exbiblio B.V.Google Inc.Assignment of Assignor's Interest
Oct 2, 2017
Reel 44101, frame 405
Google Inc.Google LLCChange of Name
Aug 3, 2021
Reel 57651, frame 445
Google LLCKyocera CorporationNunc Pro Tunc Assignment

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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