Patent US6091486A successfully refreshed from Google Patents.
Patent US2573477A successfully refreshed from Google Patents.
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 09:45
CPC Classifications
F; F01; F01M; F01M1/00; F01M1/16; Y; Y10; Y10T; Y10T137/00; Y10T137/7722
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US678095A
Cited
US1339530A
Cited
US1271108A
Cited
US1208286A
Cited
US1256754A
Cited
US1367452A
Cited
US1892917A
Cited
US2013222A
Cited
US2310745A
Cited
US2440883A
Cited
US2436102A
Cited
US2436224A
Cited
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 |