US3233257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Canoe
Assignee: Individual
•
Filing: 1965-03-05
•
Granted: 1966-02-08
•
Expires: 1985-03-05
Abstract
No abstract record available.
Inventors
- 👤 Brent G Biehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:34
CPC Classifications
B; B63; B63B; B63B43/00; B63B43/02; B63B43/10; B63B34/00; B63B34/20; B63B34/21
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |