US2907282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail vehicle suspension
Assignee: General Electric Co
•
Filing: 1957-09-04
•
Granted: 1959-10-06
•
Expires: 1977-09-04
Abstract
No abstract record available.
Inventors
- 👤 John K Erzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:50
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/04; B61F5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2237757A
Cited
US2313740A
Cited
US2652001A
Cited
US2638058A
Cited
GB687221A
Cited
US2645188A
Cited
USRE24349E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |