US3526276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid separator with delayed response liquid level control device
Assignee: Sunoco Inc
•
Filing: 1968-11-15
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Granted: 1970-09-01
•
Expires: 1988-11-15
Abstract
No abstract record available.
Inventors
- 👤 John D Bennett
- 👤 Charles R Haberthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:17
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/16; E; E21; E21B; E21B43/00; E21B43/34; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3056; Y10T137/7287; Y10T137/7313
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1907025A
Cited
US2580433A
Cited
US2736337A
Cited
US2942838A
Cited
US2881799A
Cited
US3260308A
Cited
US3406682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |