Patent US2930631A successfully refreshed from Google Patents.
US2930631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer steering mechanism
Assignee: Bridgestone Firestone Inc
•
Filing: 1957-11-13
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Granted: 1960-03-29
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Expires: 1977-11-13
Abstract
No abstract record available.
Inventors
- 👤 Sr Daniel W Voorhees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:27
CPC Classifications
B; B62; B62D; B62D13/00; B62D13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2029540A
Cited
US2167943A
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US2174493A
Cited
US2232550A
Cited
US2316397A
Cited
US2690916A
Cited
US2687900A
Cited
DE930847C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |