Patent US2900945A successfully refreshed from Google Patents.
US2900945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed boat hulls
Assignee: Individual
•
Filing: 1957-02-13
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Granted: 1959-08-25
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Expires: 1977-02-13
Abstract
No abstract record available.
Inventors
- 👤 Canazzi Henry Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:46
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/18; B63B1/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1204355A
Cited
US1100457A
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US1189227A
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US1620349A
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US1712281A
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US1743907A
Cited
US2367323A
Cited
US2446860A
Cited
US2555307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |