US2687225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile trailer bridge
Assignee: Individual
•
Filing: 1951-09-14
•
Granted: 1954-08-24
•
Expires: 1971-09-14
Abstract
No abstract record available.
Inventors
- 👤 William E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:52
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/07; B62; B62D; B62D53/00; B62D53/04; B62D53/06; B62D53/061; B62D53/062; B62D53/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2141529A
Cited
US2325869A
Cited
US2350841A
Cited
US2431436A
Cited
GB580879A
Cited
US2443611A
Cited
US2590962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |