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US3614960A
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Vent control
Assignee: Motors Liquidation Co
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Filing: 1969-04-28
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Granted: 1971-10-26
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Expires: 1989-04-28
Abstract
Abstract VENT LINES FROM A VEHICULAR GASOLINE TANK ARE CONNECTED TO A VENT CONTROL DEVICE HAVING A FLOAT OPERATED VALVE WHICH PREVENTS LOSS OF LIQUID FUEL FROM THE TANK.
Inventors
- 👤 Kenneth R Pfrengle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:24
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/035; B60K15/03519; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0874; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |