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US 8,868,603 In force, term unresolved
OverviewFamilyAssignmentsSources & methods

Term ends no later than Jun 21, 2030 · Low confidence

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Filed Dec 31, 2012 as application 13/732,101 · Granted Oct 21, 2014
Base term plus 63 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2010 2030
Clock starts
Apr 19, 2010
Ends no later than
Jun 21, 2030
Granted
Oct 21, 2014
base term patent term adjustment 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
63
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
33
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 63 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. All three maintenance fees are recorded paid; no more fees are due. Confidence: Low. 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 Apr 19, 2010, when application 12/763,162, the earliest non-provisional in its chain, was filed (this one was filed Dec 31, 2012); a parent in its chain could not be resolved (the next row)Apr 19, 2030High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+63 days, USPTO patent term adjustment recordJun 21, 2030High confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Jun 21, 2030Low confidence

This family

US 8,572,129In force
Jul 2030
Jul 2030
US 8,751,521In force
no later than Jun 2030
no later than Jun 2030
US 8,732,208In force
May 2030
May 2030
US 8,782,080In force
no later than May 2030
no later than May 2030
US 8,918,418In force
no later than Jul 2030
no later than Jul 2030
US 8,868,603this patent
no later than Jun 2030
no later than Jun 2030
Application PCT/US2013/050781PCT application
no patent term
no patent term
Application PCT/US2013/050858PCT application
no patent term
no patent term
8 of 33 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
Mar 26, 2013
Reel 30087, frame 511
Lee, Yofay Kari; Peiris, Keith L.; Maschmeyer, William R.; Rasmussen, Lars Eilstrup; Duck, Joshua KeithFacebook, Inc.Assignment of Assignor's Interest
Dec 20, 2021
Reel 58553, frame 802
Facebook, Inc.Meta Platforms, Inc.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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited