US2616852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral oil composition
Assignee: —
•
Filing: 1947-06-21
•
Granted: 1952-11-04
•
Expires: 1967-06-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:11
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C01; C01B; C01B32/00; C01B32/30; C01B32/39; C08; C08F; C08F2/00; C10M2207/00; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/086; C10M2213/00; C10M2213/04; C10M2213/06; C10N; C10N2070/00; C10N2070/02; Y; Y10; Y10S; Y10S526/00; Y10S526/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A MINERAL LUBRICATING OIL CONTAINING FROM ABOUT 0.01 PER CENT TO ABOUT 20 PER CENT BY WEIGHT OF A REACTION PRODUCT FORMED BY REACTING AN ALLYL ESTER WITH AN ALPHA, BETA-UNSATURATED MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALPHA, BETAUNSATURATED DICARBOXYLIC ACIDS AND THEIR ANHYDRIDES, AND ESTERIFYING THE PRODUCT OF THIS REACTION WITH A NORMAL ALIPHATIC ALCOHOL CONTAINING FROM ABOUT 8 TO ABOUT 18 CARBON ATOMS.
Claim 2
Dependent Claim
66 words
A MINERAL LUBRICATING OIL CONTAINING FROM ABOUT 0.01 PER CENT TO ABOUT 20 PER CENT BY WEIGHT OF A REACTION PRODUCT FORMED BY REACTING AN ALLYL ESTER WITH AN ALPHA, BETA-UNSATURATED MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALPHA, BETAUNSATURATED DICARBOXYLIC ACIDS AND THEIR ANHYDRIDES, AND ESTERIFYING THE PRODUCT OF THIS REACTION WITH A NORMAL ALIPHATIC ALCOHOL CONTAINING FROM ABOUT 8 TO ABOUT 18 CARBON ATOMS.
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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) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |