Patent US3367239A successfully refreshed from Google Patents.
US3367239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid reducers
Assignee: Individual
•
Filing: 1965-07-26
•
Granted: 1968-02-06
•
Expires: 1985-07-26
Abstract
No abstract record available.
Inventors
- 👤 Takagi Moriyuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:54
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/08; F01C1/10; F01C1/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1802887A
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US2132812A
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US2240874A
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US2787963A
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US2905094A
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US3087436A
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US3289542A
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US3288078A
Cited
US3270681A
Cited
US3289601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |