US3538357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid circulating apparatus for reciprocating machines
Assignee: Individual
•
Filing: 1969-01-02
•
Granted: 1970-11-03
•
Expires: 1989-01-02
Abstract
No abstract record available.
Inventors
- 👤 Maurice Barthalon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:45
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/16; F; F04; F04B; F04B17/00; F04B17/03; F04B17/04; F04B17/042; F04B19/00; F04B19/003; F04B31/00; F04B39/00; F04B39/02; F04B39/0284; F04B39/0292; F04F; F04F7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2177795A
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US2370347A
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US2633327A
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US2935629A
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US2875989A
Cited
US2944160A
Cited
US3058649A
Cited
US3103603A
Cited
US3147914A
Cited
US3344293A
Cited
FR1523129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |