The Patent Finder
US

Surface Display Device with a Non-Rectangular Display Surface Shape and Electronic Device Including Same

US 10,235,954 In force
OverviewFamilyAssignmentsSources & methods

Term ends Oct 12, 2027 · High confidence

Filed May 17, 2018 as application 15/982,081 · Granted Mar 19, 2019
Base term, 20 years from filing
Today
20 years from filing
2007 2027
Clock starts
Oct 12, 2007
Term ends
Oct 12, 2027
Granted
Mar 19, 2019
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 10,008,165, to Oct 12, 2027. The term already ends on or before that date, so the cap shortened nothing.
2 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.
5
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 2 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 Oct 12, 2007, when application 11/871,173, the earliest non-provisional in its chain, was filed (this one was filed May 17, 2018)Oct 12, 2027High 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 10,008,165)resolves to Oct 12, 2027, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 2 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 12, 2027High confidence

This family

US 8,773,344In force
Dec 2029
Dec 2029
US 9,097,942In force
Oct 2027
Oct 2027
US 10,008,165In force
Oct 2027
Oct 2027
US 10,235,954this patent
Oct 2027
Oct 2027
US 10,453,408In force
Oct 2027
Oct 2027
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
May 17, 2018
Reel 45831, frame 890
Haga, Hiroshi; Asada, Hideki; Kaneko, SetsuoNEC LCD Technologies, Ltd.Assignment of Assignor's Interest
May 17, 2018
Reel 45832, frame 320
NLT Technologies, Ltd.Tianma Japan, Ltd.Change of Name
May 17, 2018
Reel 46176, frame 117
NEC LCD Technologies, Ltd.NLT Technologies, Ltd.Change of Name
Sep 30, 2019
Reel 50582, frame 869
Tianma Japan, Ltd. (Formerly NLT Technologies, Ltd.)Tianma Microelectronics Co., Ltd.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.

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