US2920838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip coiling apparatus
Assignee: United Engineering and Foundry Co
•
Filing: 1956-11-01
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Granted: 1960-01-12
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Expires: 1976-11-01
Abstract
No abstract record available.
Inventors
- 👤 Charles H Priestley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/34; B21C47/3466; B21C47/3475; B21C47/02; B21C47/04; B21C47/06; B65; B65H; B65H19/00; B65H19/22; B65H19/28; B65H2406/00; B65H2406/10; B65H2406/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |