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US2653643A
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US
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Apparatus for uncoiling sheet metal
Assignee: McKay Machine Co
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Filing: 1951-09-19
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Granted: 1953-09-29
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Expires: 1971-09-19
Abstract
No abstract record available.
Inventors
- 👤 Harvey D Miller
- 👤 John C Holdgate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:03
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/02; B21C; B21C47/00; B21C47/34
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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |