US1486923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic reversible hoist
Assignee: Roberts and Schaefer Co
•
Filing: 1921-07-22
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Granted: 1924-03-18
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Expires: 1941-07-22
Abstract
No abstract record available.
Inventors
- 👤 Clyde P Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:51
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/02; B66D1/12; B66D2700/00; B66D2700/01; B66D2700/0125; B66D2700/0141; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19191; Y10T74/19205; Y10T74/19214
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) | 1927-03-18 | 1927-09-17 | 1928-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-03-18 | 1931-09-17 | 1932-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-03-18 | 1935-09-17 | 1936-03-18 | $7700.00 | Window Closed / Lapsed |