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US

Systems and Methods of Eye Tracking Calibration

US 9,791,927 In force
OverviewFamilyAssignmentsSources & methods

Term ends Feb 14, 2034 · High confidence

Filed Apr 10, 2017 as application 15/483,012 · Granted Oct 17, 2017
Base term, 20 years from filing
Today
20 years from filing
2014 2034
Clock starts
Feb 14, 2014
Term ends
Feb 14, 2034
Granted
Oct 17, 2017
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 9,693,684, to Feb 14, 2034. The term already ends on or before that date, so the cap shortened nothing.
2 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 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. 2 of 3 maintenance fees are paid so far. 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 Feb 14, 2014, when application 14/180,974, the earliest non-provisional in its chain, was filed (this one was filed Apr 10, 2017)Feb 14, 2034High 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 9,693,684)resolves to Feb 14, 2034, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderFeb 14, 2034High confidence

This family

US 9,693,684In force
Mar 2034
Mar 2034
US 9,791,927this patent
Feb 2034
Feb 2034
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
Nov 30, 2018
Reel 47687, frame 942
Facebook, Inc.Facebook Technologies, LLCAssignment of Assignor's Interest
Jun 8, 2022
Reel 60315, frame 224
Facebook Technologies, LLCMeta Platforms Technologies, LLCChange 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.

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