Patent US1132770A successfully refreshed from Google Patents.
US1132770A
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US
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Safety device for elevators.
Assignee: Otis Elevator Co
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Filing: 1908-04-11
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Granted: 1915-03-23
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Expires: 1928-04-11
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Gale Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:32
CPC Classifications
B; B66; B66B; B66B5/00; B66B5/02; B66B5/16; B66B5/18; B66B1/00; B66B1/34; B66B1/46; B66B1/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1918-03-22 | 1918-09-21 | 1919-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-03-22 | 1922-09-21 | 1923-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-03-22 | 1926-09-21 | 1927-03-23 | $7700.00 | Window Closed / Lapsed |