US2646893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist
Assignee: Individual
•
Filing: 1948-09-03
•
Granted: 1953-07-28
•
Expires: 1968-09-03
Abstract
No abstract record available.
Inventors
- 👤 Weatherford Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:43
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/36; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0357; B66C2700/0364
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US275540A
Cited
US307876A
Cited
US474963A
Cited
US634586A
Cited
US754586A
Cited
US813352A
Cited
US873374A
Cited
US917636A
Cited
US1026901A
Cited
US1061838A
Cited
US1161258A
Cited
US1461307A
Cited
US1905434A
Cited
US2374045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |