US2808738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle drive mechanism
Assignee: Rockwell Spring and Axle Co
•
Filing: 1952-06-18
•
Granted: 1957-10-08
•
Expires: 1972-06-18
Abstract
No abstract record available.
Inventors
- 👤 Clarence C Bartell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:53
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H2720/00; F16H2720/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2448345A
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US2510325A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |