US3538726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for controlling the crop shear of a hot strip mill
Assignee: Westinghouse Electric Corp
•
Filing: 1968-01-16
•
Granted: 1970-11-10
•
Expires: 1988-01-16
Abstract
No abstract record available.
Inventors
- 👤 John W Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:00
CPC Classifications
B; B23; B23D; B23D36/00; B23D36/0008; B23D36/0083; Y; Y10; Y10T; Y10T83/00; Y10T83/162; Y10T83/173; Y10T83/175; Y10T83/178; Y10T83/525; Y10T83/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1104349A
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US1949717A
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US2360995A
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US3020788A
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US2958243A
Cited
US3174316A
Cited
US3215015A
Cited
US3251212A
Cited
US3415149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |