Patent US2833374A successfully refreshed from Google Patents.
US2833374A
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US
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Constant flow lube system
Assignee: Individual
•
Filing: 1954-07-07
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Granted: 1958-05-06
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Expires: 1974-07-07
Abstract
No abstract record available.
Inventors
- 👤 Sidney P Glasser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:06
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/18; F01D25/20; G; G05; G05D; G05D7/00; G05D7/01; G05D7/0193; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788; Y10T137/8593; Y10T137/85954
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US219114A
Cited
US868219A
Cited
GB191411727A
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US1467522A
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US1640842A
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US2272684A
Cited
US2085303A
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US2146537A
Cited
US2155218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |