US2654482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter for removing ice crystals from hydrocarbon liquids and the like
Assignee: Fram Corp
•
Filing: 1952-09-20
•
Granted: 1953-10-06
•
Expires: 1972-09-20
Abstract
No abstract record available.
Inventors
- 👤 Robinson John Warren
- 👤 William S James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:40
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/20; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/50; B01D29/52; B01D29/88; B01D29/90; B01D29/908; B01D35/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1263226A
Cited
US1724436A
Cited
US2167159A
Cited
US2312999A
Cited
US2354623A
Cited
US2611490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |