US3380441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankcase ventilation flow regulator valve
Assignee: Motors Liquidation Co
•
Filing: 1965-08-23
•
Granted: 1968-04-30
•
Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 Donald B Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:53
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/793
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1919696A
Cited
FR758332A
Cited
US2359485A
Cited
US2775960A
Cited
US3144011A
Cited
US3105477A
Cited
US3144044A
Cited
US3263699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |