Patent US2482091A successfully refreshed from Google Patents.
Patent US2575315A successfully refreshed from Google Patents.
US2575315A
Expired / Lapsed
US
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Lubricant foam control system for engines
Assignee: Individual
•
Filing: 1945-05-23
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Granted: 1951-11-13
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Expires: 1965-05-23
Abstract
No abstract record available.
Inventors
- 👤 Edwards Miles Lowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:32
CPC Classifications
F; F16; F16N; F16N39/00; F16N39/002; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F01; F01M; F01M13/00; F01M13/04; F01M2013/0422; Y; Y10; Y10S; Y10S494/00; Y10S494/90; Y10S494/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |