US2680387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankshaft
Assignee: Old Carco LLC
•
Filing: 1951-05-22
•
Granted: 1954-06-08
•
Expires: 1971-05-22
Abstract
No abstract record available.
Inventors
- 👤 Andrew R White
- 👤 Robert F Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:11
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/20; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1661341A
Cited
US884053A
Cited
US1223071A
Cited
US1531411A
Cited
US1726875A
Cited
US1645717A
Cited
US1817389A
Cited
US1756659A
Cited
US1881027A
Cited
US1901358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |