US2711547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat oar
Assignee: Individual
•
Filing: 1951-09-26
•
Granted: 1955-06-28
•
Expires: 1971-09-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Bliven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:02
CPC Classifications
B; B63; B63H; B63H16/00; B63H16/04; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7005; Y10T403/7007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US279267A
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US1557311A
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US1489003A
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US1740560A
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US1760046A
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US2068564A
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US2353662A
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FR936974A
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US2527040A
Cited
US2527256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |