US3511331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skirts for vehicles propelled on air cushions
Assignee: Pneumatiques Caoutchouc Manufacture et Plastiques Kleber Colombes SA
•
Filing: 1967-07-25
•
Granted: 1970-05-12
•
Expires: 1987-07-25
Abstract
No abstract record available.
Inventors
- 👤 Roger H Landry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:19
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2151307A
Cited
US2377650A
Cited
US2698032A
Cited
US3211246A
Cited
US3388766A
Cited
US3254731A
Cited
US3339655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |