Patent US1967487A successfully refreshed from Google Patents.
US1967487A
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Method and apparatus for making propeller shafts
Assignee: MECHANICS UNIVERSAL JOINT Co
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Filing: 1930-03-20
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Granted: 1934-07-24
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Expires: 1950-03-20
Abstract
No abstract record available.
Inventors
- 👤 Horace L Waisner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:45
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/16; B21C3/00; B21C3/02; B21C3/12; B21C37/20; B21C37/207; F; F16; F16F; F16F15/00; F16F15/32; F16F15/322; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49332
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) | 1937-07-23 | 1938-01-22 | 1938-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-07-23 | 1942-01-22 | 1942-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-07-23 | 1946-01-22 | 1946-07-24 | $7700.00 | Window Closed / Lapsed |