US2903526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transportation system
Assignee: Individual
•
Filing: 1956-10-16
•
Granted: 1959-09-08
•
Expires: 1976-10-16
Abstract
No abstract record available.
Inventors
- 👤 Sr Ralph Franklin Mattox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:11
CPC Classifications
B; B60; B60M; B60M1/00; B60M1/30; B60M1/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1481405A
Cited
US746556A
Cited
US760643A
Cited
US1010504A
Cited
US1064141A
Cited
US1808277A
Cited
US2068403A
Cited
US2468158A
Cited
US2703534A
Cited
US2685003A
Cited
US2631853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |