US2957490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid segregators
Assignee: Liquid Controls Corp
•
Filing: 1955-11-03
•
Granted: 1960-10-25
•
Expires: 1975-11-03
Abstract
No abstract record available.
Inventors
- 👤 George B Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:54
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/20; F16T1/22; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/265; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3006; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/3077
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US969282A
Cited
US1529334A
Cited
US1890126A
Cited
US2064962A
Cited
US2679863A
Cited
US2758717A
Cited
US2664170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |