US3405602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid motor having a supply-and-exhaust valve carried by the piston
Assignee: Duo Fast Corp
•
Filing: 1965-12-17
•
Granted: 1968-10-15
•
Expires: 1985-12-17
Abstract
No abstract record available.
Inventors
- 👤 Edward J Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:34
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/04; B25C1/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2058425A
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US2397103A
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FR67578E
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US3081741A
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US3051135A
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US3064626A
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US3257912A
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US3259292A
Cited
US3301456A
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US3229589A
Cited
US3278103A
Cited
US3278104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |