US2907296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive and transmission for power-driven paddle wheel boat
Assignee: ROBY HUTTON
•
Filing: 1957-04-15
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Granted: 1959-10-06
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Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 Horace H Roby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:14
CPC Classifications
B; B63; B63H; B63H1/00; B63H1/02; B63H1/04; B63H5/00; B63H5/02; B63H16/00; B63H16/08; B63H16/18; B63H2016/185; Y; Y10; Y10T; Y10T74/00; Y10T74/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |