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Patent US2381808A successfully refreshed from Google Patents.
US2381808A
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Method of and means for producing bevel edges on metal strip and the like
Assignee: THOMAS STEEL Co
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Filing: 1942-12-10
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Granted: 1945-08-07
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Expires: 1962-12-10
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Davis
- 👤 Thomas F Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:58
CPC Classifications
B; B21; B21D; B21D19/00; B21D19/005; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/304144; Y10T83/00; Y10T83/02; Y10T83/0259; Y10T83/647; Y10T83/6584; Y10T83/66; Y10T83/727; Y10T83/741; Y10T83/743; Y10T83/929; Y10T83/9372
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) | 1948-08-06 | 1949-02-05 | 1949-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-06 | 1953-02-05 | 1953-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-06 | 1957-02-05 | 1957-08-07 | $7700.00 | Window Closed / Lapsed |