US2573477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil pressure regulator
Assignee: NATHAN NEVELOW
•
Filing: 1945-09-13
•
Granted: 1951-10-30
•
Expires: 1965-09-13
Abstract
No abstract record available.
Inventors
- 👤 Leonard S Mcintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:36
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/16; Y; Y10; Y10T; Y10T137/00; Y10T137/7722
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US678095A
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US1339530A
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US1256754A
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US2013222A
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US2440883A
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US2436102A
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US2436224A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |