US3061845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible amphibious catamaran
Assignee: Individual
•
Filing: 1960-02-17
•
Granted: 1962-11-06
•
Expires: 1980-02-17
Abstract
No abstract record available.
Inventors
- 👤 Gerbracht Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:21
CPC Classifications
B; B63; B63C; B63C13/00; B63B; B63B7/00; B63B7/02; B63B7/04; B63B34/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2994294A
Cited
US1106020A
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US1761883A
Cited
US2501750A
Cited
US2664577A
Cited
US2588084A
Cited
US2759201A
Cited
US2876728A
Cited
US2968271A
Cited
US2992444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |