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US

Elevator Guide Rail

US 12,240,734 In force
OverviewAssignmentsSources & methods

Also listed on Otis Mobility, S.A., an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Nov 30, 2043 · High confidence

Filed Nov 30, 2023 as application 18/525,019 · Granted Mar 4, 2025
Base term, 20 years from filing
Today
20 years from filing
2023 2043
Clock starts
Nov 30, 2023
Term ends
Nov 30, 2043
Granted
Mar 4, 2025
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.

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 Nov 30, 2023, when this application, 18/525,019, was filedNov 30, 2043High 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 orderNov 30, 2043High confidence

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
Mar 15, 2024
Reel 66789, frame 775
Monzón, AndrésOtis Mobility, S.a.Assignment of Assignor's Interest
Mar 15, 2024
Reel 66789, frame 778
García Casla, JavierOtis Mobility, S.a.Assignment of Assignor's Interest
Mar 15, 2024
Reel 66789, frame 958
Otis Mobility, S. A.Otis Elevator CompanyAssignment of Assignor's Interest
Mar 15, 2024
Reel 66789, frame 910
González-Rodil, José ManuelOtis Mobility, S.a.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