US2411399A
Expired / Lapsed
US
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Apparatus for finishing forgings
Assignee: American Brake Shoe Co
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Filing: 1945-01-20
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Granted: 1946-11-19
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Expires: 1965-01-20
Abstract
No abstract record available.
Inventors
- 👤 Alfred R Walpole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:44
CPC Classifications
B; B23; B23D; B23D31/00; B23D31/04; B21; B21J; B21J5/00; B21J5/02; B21J5/027; Y; Y10; Y10T; Y10T83/00; Y10T83/566; Y10T83/5669; Y10T83/576; Y10T83/5769; Y10T83/5778; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/8832
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) | 1949-11-18 | 1950-05-20 | 1950-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-11-18 | 1954-05-20 | 1954-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-11-18 | 1958-05-20 | 1958-11-19 | $7700.00 | Window Closed / Lapsed |