US3463729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic filtration of transmission fluid
Assignee: CARMON J BEAN
•
Filing: 1967-04-17
•
Granted: 1969-08-26
•
Expires: 1987-04-17
Abstract
No abstract record available.
Inventors
- 👤 Carmon J Bean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:43
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/28; F; F16; F16H; F16H57/00; F16H57/04; F16H57/0402; F16H57/0404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1281842A
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US1778910A
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US2392624A
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US2345029A
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US2462819A
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US2677440A
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US2755932A
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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) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |