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US907985A
Expired / Lapsed
US
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Push-button-controlled plunger-elevator system.
Assignee: Otis Elevator Co
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Filing: 1906-04-25
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Granted: 1908-12-29
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Expires: 1926-04-25
Abstract
No abstract record available.
Inventors
- 👤 Floyd C Furlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:19
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/24
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) | 1911-12-29 | 1912-06-29 | 1912-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-12-29 | 1916-06-29 | 1916-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-12-29 | 1920-06-29 | 1920-12-29 | $7700.00 | Window Closed / Lapsed |