The Patent Finder
US

Using a Position Detection Device with an Elevator System

US 8,684,142 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Apr 1, 2026 on the fee record · Low confidence

Third maintenance fee unpaid; grace period ended.

Held by Inventio AG
Filed Oct 25, 2012 as application 13/660,336 · Granted Apr 1, 2014
Base term, 20 years from filing
Today
Lapsed Apr 1, 2026
2006 2026
Clock starts
Sep 21, 2006
No longer in force
Apr 1, 2026
Granted
Apr 1, 2014
Term would have run to
Sep 21, 2026
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 8,061,485, US 8,381,880, to Sep 21, 2026. 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.
5
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 Sep 21, 2026: 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: Low. 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 Sep 21, 2006, when application PCT/CH2006/000510, the earliest non-provisional in its chain, was filed (this one was filed Oct 25, 2012); a parent in its chain could not be resolved (the next row)Sep 21, 2026High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,061,485, US 8,381,880)resolves to Sep 21, 2026, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Apr 1, 2026High confidence
Further caveats on recordThe record names parents not resolved: PCTCH2006000510, PCTCH2006000510Low confidence overallLow confidence
Computed term endThe steps above, in orderApr 1, 2026Low confidence

This family

US 8,061,485In force
Jul 2028
Jul 2028
US 8,381,880Lapsed on the fee record
Feb 2025
Feb 2025
US 8,684,142this patent
Apr 2026
Apr 2026
US 9,382,096In force
Oct 2027
Oct 2027
4 of 5 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
Dec 21, 2012
Reel 29519, frame 87
Finschi, LukasInventio AGAssignment 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