Patent US5313496A successfully refreshed from Google Patents.
Patent US2675919A successfully refreshed from Google Patents.
US2675919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressible oil filter pack
Assignee: Individual
•
Filing: 1951-12-04
•
Granted: 1954-04-20
•
Expires: 1971-12-04
Abstract
No abstract record available.
Inventors
- 👤 Albert R White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:47
CPC Classifications
B; B01; B01D; B01D27/00; B01D27/005; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/50; B01D29/56; B01D29/58; B01D2201/00; B01D2201/18; B01D2201/188
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US754053A
Cited
US980832A
Cited
US1898027A
Cited
US2098102A
Cited
US2143044A
Cited
US2197471A
Cited
US2314640A
Cited
US2301121A
Cited
US2435707A
Cited
US2394895A
Cited
US2550853A
Cited
US2427733A
Cited
US2463137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |