Patent US2895174A successfully refreshed from Google Patents.
US2895174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of pleated filters
Assignee: Fram Corp
•
Filing: 1957-01-10
•
Granted: 1959-07-21
•
Expires: 1977-01-10
Abstract
No abstract record available.
Inventors
- 👤 Carl G Hockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:39
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/2403; B01D46/2411; B01D46/0001; B01D46/52; B01D46/521; B29; B29C; B29C70/00; B29C70/58; Y; Y10; Y10S; Y10S264/00; Y10S264/48
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US726965A
Cited
US1284553A
Cited
US2261416A
Cited
US2432137A
Cited
US2512797A
Cited
US2549810A
Cited
GB680211A
Cited
US2732031A
Cited
US2771156A
Cited
US2749265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |