US3067439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable catamaran
Assignee: Individual
•
Filing: 1958-06-10
•
Granted: 1962-12-11
•
Expires: 1978-06-10
Abstract
No abstract record available.
Inventors
- 👤 John B Brush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:58
CPC Classifications
B; B63; B63H; B63H21/00; B63H21/175; B60; B60F; B60F3/00; B60F3/0061; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/14; B63B35/00; B63B35/54; B63B7/00; B63B7/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1602812A
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US2282745A
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US2342535A
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US2341166A
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US2365830A
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US2588084A
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DE859415C
Cited
US2712293A
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US2850747A
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US2851705A
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US2917754A
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US2914016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |