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US3628928A
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Middle distillate
Assignee: Universal Oil Products Co
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Filing: 1970-02-02
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Granted: 1971-12-21
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Expires: 1990-02-02
Abstract
Abstract Middle distillate of improved pour point containing a pourpoint-depressant amount of a C14-C20 saturated carboxylic acid ester of alpha-methylglucoside.
Inventors
- 👤 Alexander Gaydasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:08
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/19
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
11 words
The middle distillate of claim 1 wherein said glucoside is alpha-methylglucoside.
Claim 2
Dependent Claim
20 words
The middle distillate of claim 1 wherein said concentration is from about 0.001 percent to about 1 percent by weight.
Claim 3
Dependent Claim
20 words
The middle distillate of claim 2 wherein said concentration is from about 0.01 percent to about 0.5 percent by weight.
Claim 4
Dependent Claim
12 words
The middle distillate of claim 2 wherein said ester is alpha-methylglucoside palmitate.
Claim 5
Dependent Claim
12 words
The middle distillate of claim 2 wherein said ester is alpha-methylglucoside stearate.
References Cited (Backward Citations)
US3053830A
Cited
US3093481A
Cited
US3378542A
Cited
US3459733A
Cited
US3312684A
Cited
US3447917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |