Patent US3395672A successfully refreshed from Google Patents.
US3395672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amphibious motor vehicle
Assignee: Individual
•
Filing: 1967-04-20
•
Granted: 1968-08-06
•
Expires: 1987-04-20
Abstract
No abstract record available.
Inventors
- 👤 Ruf Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:24
CPC Classifications
F; F41; F41H; F41H7/00; F41H7/02; B; B60; B60F; B60F3/00; B60F3/0007; B62; B62D; B62D61/00; B62D61/10; B62D7/00; B62D7/06; B62D7/14; B62D7/142; B62D7/144; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |