US3139905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid superchargers
Assignee: Individual
•
Filing: 1961-09-11
•
Granted: 1964-07-07
•
Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Oscar E Rosaen
- 👤 Nils O Rosaen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:41
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0854; F01C21/0863; F04; F04C; F04C2/00; F04C2/30; F04C2/34; F04C2/344; F04C2/3446; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/86139; Y10T137/86147; Y10T137/86155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1354129A
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US1982841A
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US2251664A
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US2238502A
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US2423639A
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US2781831A
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US2983226A
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US2887060A
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US2779293A
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US2941479A
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US3002461A
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US2967488A
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US2968252A
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US3043107A
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US3054262A
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |