US2671231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canoe yoke
Assignee: Individual
•
Filing: 1951-06-08
•
Granted: 1954-03-09
•
Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 William E Massicotte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:14
CPC Classifications
B; B63; B63C; B63C13/00; B63B; B63B34/00; B63B34/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US247827A
Cited
US451579A
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US1257073A
Cited
US1359806A
Cited
US1637305A
Cited
US2488316A
Cited
US2608693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |