US3378121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum operated clutch and brake with magnetic valve
Assignee: Foret Systems Inc
•
Filing: 1965-10-20
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Granted: 1968-04-16
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Pierre G Foret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:49
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0603; F16K31/0624; F16D; F16D67/00; F16D67/02; F16D67/04; F16K31/0606; H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1638; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2774; Y10T137/2802; Y10T137/2815; Y10T137/2822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE124606C
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US2267515A
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US2289456A
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US2861594A
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US2818949A
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US3289905A
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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) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |