US2732031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination seal and gasket for end of pleated cartridge
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:17
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/52; B01D46/521; B01D46/0039; B01D46/0047; B01D46/0049; B01D46/24; B01D46/2403; B01D46/2411; F; F02; F02M; F02M35/00; F02M35/02; F02M35/024; Y; Y10; Y10S; Y10S264/00; Y10S264/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2122111A
Cited
US2569243A
Cited
US2632526A
Cited
US2627350A
Cited
FR985029A
Cited
GB680211A
Cited
GB689619A
Cited
US2642187A
Cited
US2654440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |