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Adjustable Interface Buffer Circuit Between a Programmable Logic Device and a Dedicated Device

US 8,487,652 Term ended
OverviewFamilyAssignmentsSources & methods

Term ended Oct 23, 2026 · High confidence

No current holder resolved from the recorded chain.
Filed Aug 18, 2011 as application 13/212,522 · Granted Jul 16, 2013
Base term plus 32 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Oct 23, 2026
2006 2026
Clock starts
Sep 21, 2006
Term ended
Oct 23, 2026
Granted
Jul 16, 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
32
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 8,018,248, to Oct 23, 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.
2
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 32 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 Sep 21, 2006, when application 11/525,275, the earliest non-provisional in its chain, was filed (this one was filed Aug 18, 2011)Sep 21, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+32 days, USPTO patent term adjustment recordOct 23, 2026High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,018,248)resolves to Oct 23, 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 orderOct 23, 2026High confidence

This family

US 8,018,248In force
May 2028
May 2028
US 8,487,652this patent
Oct 2026
Oct 2026
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 5, 2018
Reel 47198, frame 960
Quicklogic CorporationHeritage Bank of CommerceSecurity Interest
May 7, 2026
Reel 75567, frame 964
Heritage Bank of CommerceQuicklogic CorporationRelease of Security 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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