US3422778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multipurpose boat
Assignee: Individual
•
Filing: 1966-10-20
•
Granted: 1969-01-21
•
Expires: 1986-10-20
Abstract
No abstract record available.
Inventors
- 👤 Leon Halfon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:21
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/02; B63B; B63B34/00; B63B34/50; B63H25/00; B63B32/00; B63B32/50; B63B32/56; B63B32/60
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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |