US2917754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catamarans
Assignee: Individual
•
Filing: 1955-12-27
•
Granted: 1959-12-22
•
Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Charles F Gunderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:10
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/12; B63B1/121; B63B7/00; B63B7/06; B63B1/14; B63B2001/145; B63B2007/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US596685A
Cited
GB189902093A
Cited
US1625579A
Cited
US2464957A
Cited
US2585599A
Cited
US2588084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |