Patent US4898116A successfully refreshed from Google Patents.
US2423601A
Expired / Lapsed
US
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Shear for frangible materials
Assignee: Individual
•
Filing: 1945-10-13
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Granted: 1947-07-08
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Expires: 1965-10-13
Abstract
No abstract record available.
Inventors
- 👤 William L Macarthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:55
CPC Classifications
B; B27; B27M; B27M1/00; B27M1/04; B28; B28D; B28D1/00; B28D1/32; B28D1/327; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/895; Y10T83/00; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9428; Y10T83/9435; Y10T83/9437
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) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |