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Electromagnetic Impedance Spectroscopy Apparatus and Related Planar Sensor System

US 11,680,920 In force
OverviewFamilyAssignmentsSources & methods

Term ends Jan 17, 2039 · High confidence

Filed Feb 11, 2022 as application 17/669,687 · Granted Jun 20, 2023
Base term, 20 years from filing
Today
20 years from filing
2019 2039
Clock starts
Jan 17, 2019
Term ends
Jan 17, 2039
Granted
Jun 20, 2023
base term 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.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
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. 0 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 Jan 17, 2019, when application PCT/US2019/013936, the earliest non-provisional in its chain, was filed (this one was filed Feb 11, 2022)Jan 17, 2039High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJan 17, 2039High confidence

This family

Application PCT/US2019/013936PCT application
no patent term
no patent term
US 11,268,922In force
Jan 2039
Jan 2039
US 11,680,920this patent
Jan 2039
Jan 2039
US 12,560,565In force
Jan 2039
Jan 2039
Application 19/529,394Pending
not computed
not computed
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
Feb 11, 2022
Reel 58990, frame 364
Geier, Manfred; Blot, Adam D.; Westcott, Andrew J.Transtech Systems, 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