US2381807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for removing burr from strips
Assignee: THOMAS STEEL Co
•
Filing: 1942-10-15
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Granted: 1945-08-07
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Expires: 1962-10-15
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Davis
- 👤 Thomas F Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:25
CPC Classifications
B; B23; B23D; B23D79/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303752; Y10T409/304144; Y10T83/00; Y10T83/343; Y10T83/647; Y10T83/6584; Y10T83/6601
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 |