US2831372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle drive mechanisms
Assignee: Rockwell Spring and Axle Co
•
Filing: 1953-12-28
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Granted: 1958-04-22
•
Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Boughner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:24
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/04; F16H37/042; F16H37/046; F16H2200/00; F16H2200/003; F16H2200/0034; F16H2702/00; F16H2702/02; F16H2702/04; Y; Y10; Y10S; Y10S123/00; Y10S123/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |