Patent US3055175A successfully refreshed from Google Patents.
US3055175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine propulsion means
Assignee: Individual
•
Filing: 1961-03-14
•
Granted: 1962-09-25
•
Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 Frank C Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:26
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/08; B63H20/00; B63H2011/082
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US44584A
Cited
US55773A
Cited
US164033A
Cited
US543182A
Cited
US1838354A
Cited
US2024274A
Cited
US2149155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |