US2802554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle drive mechanism
Assignee: Rockwell Spring and Axle Co
•
Filing: 1953-12-30
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Granted: 1957-08-13
•
Expires: 1973-12-30
Abstract
No abstract record available.
Inventors
- 👤 William L Pringle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/34; B60K17/348; B60K17/35; B60K17/3505; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084; Y10T74/19219; Y10T74/19377; Y10T74/19386; Y10T74/194; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE507965A
Cited
US2154045A
Cited
US2107072A
Cited
US2354300A
Cited
US2601297A
Cited
US2711222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |