US2222193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator system
Assignee: Otis Elevator Co
•
Filing: 1939-10-21
•
Granted: 1940-11-19
•
Expires: 1959-10-21
Abstract
No abstract record available.
Inventors
- 👤 Crabbe George Norm
- 👤 Paulson Arthur Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:56
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/468; B66B2201/00; B66B2201/40; B66B2201/46; B66B2201/4607; B66B2201/4623; B66B2201/463
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) | 1943-11-19 | 1944-05-20 | 1944-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-19 | 1948-05-20 | 1948-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-19 | 1952-05-20 | 1952-11-19 | $7700.00 | Window Closed / Lapsed |