Patent US2634436A successfully refreshed from Google Patents.
US2634436A
Expired / Lapsed
US
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Watercraft
Assignee: BEN PLAZIAK
•
Filing: 1948-06-10
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Granted: 1953-04-14
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Expires: 1968-06-10
Abstract
No abstract record available.
Inventors
- 👤 Plaziak Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:54
CPC Classifications
B; B63; B63B; B63B3/00; B63B3/14; B63B3/16; B63B3/18; B63B1/00; B63B1/16; B63B1/18; B63H; B63H20/00; B63H20/02; B63B1/20; B63B2001/201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1001601A
Cited
US1794985A
Cited
US1805812A
Cited
US1868280A
Cited
GB393767A
Cited
US1917367A
Cited
US2064927A
Cited
US2220875A
Cited
US2183892A
Cited
US2312722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |