US2335568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1941-05-15
•
Granted: 1943-11-30
•
Expires: 1961-05-15
Abstract
No abstract record available.
Inventors
- 👤 Lock Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:56
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/28; B66D1/36; B66D2700/00; B66D2700/01; B66D2700/0183; B66D2700/0191
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) | 1946-11-29 | 1947-05-31 | 1947-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-11-29 | 1951-05-31 | 1951-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-11-29 | 1955-05-31 | 1955-11-30 | $7700.00 | Window Closed / Lapsed |