US2999253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible canoe and kayak
Assignee: Individual
•
Filing: 1958-08-25
•
Granted: 1961-09-12
•
Expires: 1978-08-25
Abstract
No abstract record available.
Inventors
- 👤 Arnold S Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:28
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/20; B63B34/21; B63B34/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE20588C
Cited
DE14407C
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DE11479C
Cited
US1372528A
Cited
DE806099C
Cited
US2764766A
Cited
FR1146679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |