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Optical Temperature Sensor and Method of Controlling Same

US 9,885,612 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Feb 6, 2026 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Jul 21, 2015 as application 14/804,557 · Granted Feb 6, 2018
Base term, 20 years from filing, plus 82 days of patent term adjustment (USPTO delay)
Today
Lapsed Feb 6, 2026
2015 2035
Clock starts
Jul 21, 2015
No longer in force
Feb 6, 2026
Granted
Feb 6, 2018
Term would have run to
Oct 11, 2035
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
82
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
47
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Oct 11, 2035: its 20-year base term plus 82 days of term adjustment for prosecution delay. 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 Jul 21, 2015, when this application, 14/804,557, was filedJul 21, 2035High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+82 days, USPTO patent term adjustment recordOct 11, 2035High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Feb 6, 2026High confidence
Computed term endThe steps above, in orderFeb 6, 2026High confidence

This family

Application 14/691,656Abandoned
not computed
not computed
US 9,441,291In force
Apr 2035
Apr 2035
US 9,601,318In force
May 2035
May 2035
US 10,151,028In force
May 2036
May 2036
US 9,623,516In force
Jun 2035
Jun 2035
US 10,233,535In force
Apr 2037
Apr 2037
US 9,885,612this patent
Feb 2026
Feb 2026
US 9,711,370In force
Aug 2035
Aug 2035
8 of 47 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
Jul 21, 2015
Reel 36142, frame 762
Yamada, Kenichiro; Yamamoto, TakariTokyo Electron LimitedAssignment 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.

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