Patent US2596789A successfully refreshed from Google Patents.
US2596789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil filter for crankcase safety devices
Assignee: Individual
•
Filing: 1947-10-03
•
Granted: 1952-05-13
•
Expires: 1967-10-03
Abstract
No abstract record available.
Inventors
- 👤 Victor D Plantico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:36
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/04; F01M2013/0438
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB191117856A
Cited
US1218975A
Cited
US1228837A
Cited
US1383746A
Cited
US1440554A
Cited
US1701154A
Cited
US2279699A
Cited
FR862916A
Cited
US2543165A
Cited
US2470943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |