US3252772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oil composition
Assignee: Sinclair Research Inc
•
Filing: 1962-11-15
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Granted: 1966-05-24
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Expires: 1982-11-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Clough
- 👤 David W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:17
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/16; C10L1/1625; C10L1/1633; C10L1/1658
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A COMPOSITION CONSISTING ESSENTIALY OF DISTILLATE LIQUID MINERAL FUEL OIL BOILING PRIMARILY ABOVE THE GASOLINE RANGE CONTAINING A SMALL AMOUNT OF A POLYMER CONSISTING ESSENTIALLY OF A NORMALLY LIQUID, MINERAL OIL-COMPATIBLE POLYMER OF ABOUT 1 TO 20% BY WEIGHT BUTADIENE AND A MIXTURE OF NORMAL ALPHA OLEFINS CONTAINING AT LEAST ABOUT 25% C16 NORMAL, ALPHA OLEFIN, AT LEAST ABOUT 20% C18 NORMAL, ALPHA OLEFIN AND UP TO ABOUT 50% OF NORMAL, ALPHA OLEFINS IN THE C10 TO C24 RANGE OTHER THAN C16 TO C18, SAID AMOUNT BEING SUFFICIENT TO PROVIDE THE FUEL OIL WITH A REDUCED POUR POINT.
Claim 2
Dependent Claim
98 words
A COMPOSITION CONSISTING ESSENTIALY OF DISTILLATE LIQUID MINERAL FUEL OIL BOILING PRIMARILY ABOVE THE GASOLINE RANGE CONTAINING A SMALL AMOUNT OF A POLYMER CONSISTING ESSENTIALLY OF A NORMALLY LIQUID, MINERAL OIL-COMPATIBLE POLYMER OF ABOUT 1 TO 20% BY WEIGHT BUTADIENE AND A MIXTURE OF NORMAL ALPHA OLEFINS CONTAINING AT LEAST ABOUT 25% C16 NORMAL, ALPHA OLEFIN, AT LEAST ABOUT 20% C18 NORMAL, ALPHA OLEFIN AND UP TO ABOUT 50% OF NORMAL, ALPHA OLEFINS IN THE C10 TO C24 RANGE OTHER THAN C16 TO C18, SAID AMOUNT BEING SUFFICIENT TO PROVIDE THE FUEL OIL WITH A REDUCED POUR POINT.
References Cited (Backward Citations)
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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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |