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US3321784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catamaran type of water craft
Assignee: Individual
•
Filing: 1965-10-23
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Granted: 1967-05-30
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Edwin W Rasmussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:20
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/12; B63B1/125; B63B34/00; B63B34/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A WATER CRAFT ADAPTABLE FOR USE IN A VARIETY OF WAYS, COMPRISING IN COMBINATION: A PAIR OF BUOYANT HULL MEMBERS; MEANS FORMING A PAIR OF GROOVES EXTENDING HORIZONTALLY ALONG THE INSIDE OF EACH OF SAID HULL MEMBERS; AND A PLURALITY OF CENTER HULL MEMBERS RETAINED IN SAID GROOVES BETWEEN SAID BUOYANT HULL MEMBERS, SAID
Claim 2
Dependent Claim
54 words
A WATER CRAFT ADAPTABLE FOR USE IN A VARIETY OF WAYS, COMPRISING IN COMBINATION: A PAIR OF BUOYANT HULL MEMBERS; MEANS FORMING A PAIR OF GROOVES EXTENDING HORIZONTALLY ALONG THE INSIDE OF EACH OF SAID HULL MEMBERS; AND A PLURALITY OF CENTER HULL MEMBERS RETAINED IN SAID GROOVES BETWEEN SAID BUOYANT HULL MEMBERS, SAID
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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |