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Patent US3425511A successfully refreshed from Google Patents.
US3425511A
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US
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Lubrication system and valve therefor
Assignee: WILLIAM W NUGENT AND CO Inc
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Filing: 1966-03-16
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Granted: 1969-02-04
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Expires: 1986-03-16
Abstract
No abstract record available.
Inventors
- 👤 Warren J Severin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:25
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/16; F01M1/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2536663A
Cited
US2748947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |