US2902161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable filter for removing contaminants from fluids and filter cartridge therefor
Assignee: Dana Inc
•
Filing: 1955-01-10
•
Granted: 1959-09-01
•
Expires: 1975-01-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Kingsley E Humbert
- 👤 Ralph L Young
- 👤 Jr Lewis M Hough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:19
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/02; B01D29/00; B01D29/01; B01D29/05; B01D29/07; B01D29/072; B01D29/073; B01D29/88; B01D29/90; B01D35/00; B01D35/14; B01D35/157; B01D2201/00; B01D2201/24; B01D2201/26; B01D2201/265; Y; Y10; Y10S; Y10S210/00; Y10S210/08
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |