US3013515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroski assembly
Assignee: Individual
•
Filing: 1960-04-14
•
Granted: 1961-12-19
•
Expires: 1980-04-14
Abstract
No abstract record available.
Inventors
- 👤 Morel Stanley Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:08
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/18; B63B1/22
Claims Analysis
Total Claims: 0
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US2369129A
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US2749870A
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US2886462A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |