Patent US3226738A successfully refreshed from Google Patents.
US3226738A
Expired / Lapsed
US
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Self-trailing boats
Assignee: Individual
•
Filing: 1964-11-25
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Granted: 1966-01-04
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Fred K Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:11
CPC Classifications
B; B63; B63C; B63C13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A SELF-TRAILING BOAT, COMPRISING A HULL HAVING LATERALLY SPACED APART OPENINGS IN ITS BOTTOM SIDE, MEANS INCLUDING A WHEEL ASSEMBLY AND A SURFACE ADAPTED TO PROVIDE AT LEAST A SUBSTANTIAL CONTINUATION OF THE BOAT HULL, EACH OF SAID WHEEL ASSEMBLY AND SURFACE BEING SEPARATE FROM THE HULL AND LOWERABLE THROUGH THE UPPER END OF EACH OPENING INTO POSITIONS WITHIN SAID OPENING FOR CONVERTING SAID BOAT BETWEEN SELF-TRAILING AND NORMAL OPERATING CONDITIONS, AND MEANS FOR INTERCHANGEABLY SECURING EACH OF SAID WHEEL ASSEMBLY AND SURFACE IN SAID POSITIONS WITHIN EACH SAID OPENING.
Claim 2
Dependent Claim
90 words
A SELF-TRAILING BOAT, COMPRISING A HULL HAVING LATERALLY SPACED APART OPENINGS IN ITS BOTTOM SIDE, MEANS INCLUDING A WHEEL ASSEMBLY AND A SURFACE ADAPTED TO PROVIDE AT LEAST A SUBSTANTIAL CONTINUATION OF THE BOAT HULL, EACH OF SAID WHEEL ASSEMBLY AND SURFACE BEING SEPARATE FROM THE HULL AND LOWERABLE THROUGH THE UPPER END OF EACH OPENING INTO POSITIONS WITHIN SAID OPENING FOR CONVERTING SAID BOAT BETWEEN SELF-TRAILING AND NORMAL OPERATING CONDITIONS, AND MEANS FOR INTERCHANGEABLY SECURING EACH OF SAID WHEEL ASSEMBLY AND SURFACE IN SAID POSITIONS WITHIN EACH SAID OPENING.
References Cited (Backward Citations)
US2890466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |