US2991745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slotted nose hydroski
Assignee: Individual
•
Filing: 1960-06-06
•
Granted: 1961-07-11
•
Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Marvin I Haar
- 👤 Dennis D H Lueders
- 👤 Robert E Prowse
- 👤 Savitsky Daniel
- 👤 Robert L Van Dyck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:33
CPC Classifications
B; B63; B63B; B63B32/00; B63B32/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1133342A
Cited
US1269397A
Cited
US1750593A
Cited
US2162705A
Cited
US2919669A
Cited
US2931134A
Cited
US2940091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |