Patent US6134443A successfully refreshed from Google Patents.
Patent US2695584A successfully refreshed from Google Patents.
US2695584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface craft
Assignee: Individual
•
Filing: 1950-08-19
•
Granted: 1954-11-30
•
Expires: 1970-08-19
Abstract
No abstract record available.
Inventors
- 👤 Watters Willard Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:19
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0061; B60F3/0076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1048337A
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US1450197A
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US1710869A
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US1716230A
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US1816118A
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US2054011A
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US1928552A
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US2165633A
Cited
US2276310A
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US2259804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |