US2884950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crankcase ventilator
Assignee: FRANCOIS N PALMATIER
•
Filing: 1955-10-10
•
Granted: 1959-05-05
•
Expires: 1975-10-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Settelmayer
- 👤 James W Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:48
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7749; Y10T137/7752
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367324A
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US2069022A
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US2359485A
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US2240459A
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US2358875A
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US2800919A
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US2716398A
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US2633113A
Cited
US2742057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |