Patent US2982628A successfully refreshed from Google Patents.
US2982628A
Expired / Lapsed
US
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Gasoline fuel compositions
Assignee: Shell USA Inc
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Filing: 1955-12-01
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Granted: 1961-05-02
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Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Lusebrink
- 👤 Stanley L Cosgrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:43
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/10; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/236; C10L1/2364; C10L1/2366; C10L1/2368
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A GASOLINE COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A HYDROCARBON MATERIAL BOILING WITHIN THE GASOLINE BOILING RANGE AND A MINOR AMOUNT, AT LEAST 0.1 AND LESS THAN 100 PARTS PER MILLION BY WEIGHT, OF AN OIL-SOLUBLE COPOLYMER HAVING THE FORMULA:
Claim 2
Dependent Claim
42 words
A GASOLINE COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A HYDROCARBON MATERIAL BOILING WITHIN THE GASOLINE BOILING RANGE AND A MINOR AMOUNT, AT LEAST 0.1 AND LESS THAN 100 PARTS PER MILLION BY WEIGHT, OF AN OIL-SOLUBLE COPOLYMER HAVING THE FORMULA:
References Cited (Backward Citations)
US2469737A
Cited
US2706677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |