Patent US3242809A successfully refreshed from Google Patents.
Patent US2471780A successfully refreshed from Google Patents.
US2471780A
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US
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Machine for fabricating strakes for boat construction or the like
Assignee: Individual
•
Filing: 1944-08-23
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Granted: 1949-05-31
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Expires: 1964-08-23
Abstract
No abstract record available.
Inventors
- 👤 Sandison Alexander Gre Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:32
CPC Classifications
B; B27; B27H; B27H3/00; B27H3/02; B27M; B27M3/00; B27M3/08; Y; Y10; Y10T; Y10T408/00; Y10T408/08; Y10T408/34; Y10T408/352
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |