Patent US2940933A successfully refreshed from Google Patents.
US2940933A
Expired / Lapsed
US
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Mineral oil antioxidant
Assignee: Sunoco Inc
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Filing: 1956-09-26
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Granted: 1960-06-14
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Expires: 1976-09-26
Abstract
No abstract record available.
Inventors
- 👤 James L Jezl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:34
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2608; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2219/086; C10M2219/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A STABILIZED MINERAL OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF MINERAL OIL AND A SMALL BUT SUFFICIENT AMOUNT TO IMPROVE OIL OXIDATION STABILITY OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DI-METHIONINE, DIMETHIONINE ANHYDRIDE AND D-METHIONINE.
Claim 2
Dependent Claim
37 words
A STABILIZED MINERAL OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF MINERAL OIL AND A SMALL BUT SUFFICIENT AMOUNT TO IMPROVE OIL OXIDATION STABILITY OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DI-METHIONINE, DIMETHIONINE ANHYDRIDE AND D-METHIONINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |