US2672320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replaceable sheave and bearing construction for sheave blocks
Assignee: Regan Forge and Engineering Co
•
Filing: 1952-04-05
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Granted: 1954-03-16
•
Expires: 1972-04-05
Abstract
No abstract record available.
Inventors
- 👤 Burt S Minor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:18
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/04; B66D3/06; B66D2700/00; B66D2700/02; B66D2700/026; B66D2700/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1910173A
Cited
US2274099A
Cited
US2282633A
Cited
US2382049A
Cited
US2423142A
Cited
US2511729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |