US2376972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double drum hoist
Assignee: SERVICE SUPPLY Corp
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Filing: 1944-01-03
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Granted: 1945-05-29
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Expires: 1964-01-03
Abstract
No abstract record available.
Inventors
- 👤 Frank P Lawier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:25
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/26; B66D2700/00; B66D2700/01; B66D2700/0125; B66D2700/0166; B66D2700/0175
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) | 1948-05-28 | 1948-11-27 | 1949-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-05-28 | 1952-11-27 | 1953-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-05-28 | 1956-11-27 | 1957-05-29 | $7700.00 | Window Closed / Lapsed |