US3038211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making filter cartridges
Assignee: Fram Corp
•
Filing: 1960-09-15
•
Granted: 1962-06-12
•
Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 Luedi Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:51
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/2403; B01D46/2411; B01D46/2414; B01D46/0039; B01D46/0041; B01D46/0043; F; F02; F02M; F02M35/00; F02M35/02; F02M35/024; B01D2265/00; B01D2265/02; B01D2265/028; B01D2271/00; B01D2271/02; B01D2271/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2456615A
Cited
US2122111A
Cited
US2732031A
Cited
US2771156A
Cited
US2965933A
Cited
US2895174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |