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US3672854A
Expired / Lapsed
US
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Middle distillate
Assignee: Universal Oil Products Co
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Filing: 1969-12-03
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Granted: 1972-06-27
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Expires: 1989-12-03
Abstract
Abstract MIDDLE DISTILLATE OF IMPROVED POUR POINT CONTAINING A POUR POINT DEPRESSANT AMOUNT OF A C14-C26 SATURATED CARBOXYLIC ACID ESTER OF A POLYHYDRIC ALCOHOL HAVING FROM 4 TO 8 HYDROXY GROUPS.
Inventors
- 👤 Robert H Rosenwald
- 👤 Alexander Gaydasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:43
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/19; C10L1/191
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |