The Patent Finder
US

NDIR Glucose Detection in Liquids

US 10,041,881 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Aug 7, 2026 on the fee record · High confidence

Second maintenance fee unpaid; grace period ended.

Filed Oct 17, 2017 as application 15/785,829 · Granted Aug 7, 2018
Base term, 20 years from filing
Today
Lapsed Aug 7, 2026
2016 2036
Clock starts
Nov 22, 2016
No longer in force
Aug 7, 2026
Granted
Aug 7, 2018
Term would have run to
Nov 22, 2036
base term 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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,823,185, to Nov 22, 2036. The term already ends on or before that date, so the cap shortened nothing.
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.
14
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 Nov 22, 2036: 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. 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 Nov 22, 2016, when application 15/358,873, the earliest non-provisional in its chain, was filed (this one was filed Oct 17, 2017)Nov 22, 2036High 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 9,823,185)resolves to Nov 22, 2036, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidlapsed Aug 7, 2026High confidence
Computed term endThe steps above, in orderAug 7, 2026High confidence

This family

US 9,606,053In force
Nov 2036
Nov 2036
US 9,678,000In force (reinstated)
Nov 2036
Nov 2036
US 9,726,601In force
Nov 2036
Nov 2036
US 9,823,185In force
Nov 2036
Nov 2036
US 10,041,881this patent
Aug 2026
Aug 2026
Application PCT/US2017/062475PCT application
no patent term
no patent term
US 10,241,044In force
Nov 2036
Nov 2036
US 10,473,586In force
Nov 2036
Nov 2036
8 of 14 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
Oct 18, 2017
Reel 43898, frame 612
Wong, Jacob YAirware, Inc.Assignment of Assignor's Interest
Oct 18, 2017
Reel 43898, frame 620
Campbell, Thomas GAirware, Inc.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