Patent US1989136A successfully refreshed from Google Patents.
US1989136A
Expired / Lapsed
US
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Metal shearing apparatus
Assignee: Youngstown Sheet and Tube Co
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Filing: 1931-03-05
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Granted: 1935-01-29
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Expires: 1951-03-05
Abstract
No abstract record available.
Inventors
- 👤 Geggus John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:03
CPC Classifications
B; B23; B23D; B23D19/00; B23D19/04; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7793; Y10T83/7797; Y10T83/7809; Y10T83/783; Y10T83/7843
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) | 1938-01-28 | 1938-07-30 | 1939-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-01-28 | 1942-07-30 | 1943-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-01-28 | 1946-07-30 | 1947-01-29 | $7700.00 | Window Closed / Lapsed |