Patent US1860607A successfully refreshed from Google Patents.
US1860607A
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Method of making crank shafts
Assignee: UNION DRAWN STEEL Co
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Filing: 1929-04-15
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Granted: 1932-05-31
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Expires: 1949-04-15
Abstract
No abstract record available.
Inventors
- 👤 Edward T Causer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:18
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/06; B21K1/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49286; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2177
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) | 1935-05-31 | 1935-11-30 | 1936-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-05-31 | 1939-11-30 | 1940-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-05-31 | 1943-11-30 | 1944-05-31 | $7700.00 | Window Closed / Lapsed |