US996933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic-traction-wheel-drive elevator.
Assignee: Otis Elevator Co
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Filing: 1905-12-16
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Granted: 1911-07-04
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Expires: 1925-12-16
Abstract
No abstract record available.
Inventors
- 👤 David L Lindquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:45
CPC Classifications
B; B66; B66B; B66B11/00; B66B11/04; B66B15/00; B66B15/02; B66B15/04
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) | 1914-07-03 | 1915-01-02 | 1915-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-07-03 | 1919-01-02 | 1919-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-07-03 | 1923-01-02 | 1923-07-04 | $7700.00 | Window Closed / Lapsed |