Patent US3307511A successfully refreshed from Google Patents.
US3307511A
Expired / Lapsed
US
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Catamarans
Assignee: Individual
•
Filing: 1965-10-18
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Granted: 1967-03-07
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Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Merlin S Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:26
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A CATAMARAN COMPRISING A PAIR OF HULLS POSITIONED SPACED APART, BUT EXTENDING LONGITUDINALLY IN A SIMILAR DIRECTION, MEANS CONNECTING AND RETAINING SAID HULLS IN THEIR RELATIVE POSITIONS, MEANS FOR PROPELLING SAID HULLS THROUGH THE WATER AND CONNECTED THERETO, EACH OF SAID HULLS BEING LONGITUDINALLY ELONGATED AND HAVING A RELATIVE NARROW WIDTH WITH A TOP SIDE AND INNER SIDE JOINED BY A CURVING OUTER SIDE, A PLATE MOUNTED ON EACH HULL CURVING OUTER SIDE AND EXTENDING BEYOND ITS HULL INNER SIDE AND SAID HULL POSITIONED WITH THEIR INNER SIDES FACING ONE ANOTHER.
Claim 2
Dependent Claim
91 words
A CATAMARAN COMPRISING A PAIR OF HULLS POSITIONED SPACED APART, BUT EXTENDING LONGITUDINALLY IN A SIMILAR DIRECTION, MEANS CONNECTING AND RETAINING SAID HULLS IN THEIR RELATIVE POSITIONS, MEANS FOR PROPELLING SAID HULLS THROUGH THE WATER AND CONNECTED THERETO, EACH OF SAID HULLS BEING LONGITUDINALLY ELONGATED AND HAVING A RELATIVE NARROW WIDTH WITH A TOP SIDE AND INNER SIDE JOINED BY A CURVING OUTER SIDE, A PLATE MOUNTED ON EACH HULL CURVING OUTER SIDE AND EXTENDING BEYOND ITS HULL INNER SIDE AND SAID HULL POSITIONED WITH THEIR INNER SIDES FACING ONE ANOTHER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |