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
2026-10-29 11:12
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/04; F01M2013/0438
Claims Analysis
Total Claims: 0
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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 |