Patent US2700780A successfully refreshed from Google Patents.
US2700780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat hull constructed of panels
Assignee: Individual
•
Filing: 1951-09-29
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Granted: 1955-02-01
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Expires: 1971-09-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:03
CPC Classifications
B; B63; B63B; B63B5/00; B63B5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB234303A
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US1898417A
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US2443767A
Cited
US2572623A
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US2529088A
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US2507497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |