US2800450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating compositions
Assignee: Shell Development Co
•
Filing: 1954-05-10
•
Granted: 1957-07-23
•
Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Arnold A Bondi
- 👤 Diamond Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:04
CPC Classifications
C; C10; C10M; C10M167/00; C08; C08F; C08F8/00; C08F8/12; C10M3/00; C08F2810/00; C08F2810/50; C10M2205/00; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2213/00; C10M2213/04; C10M2213/06; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10M2217/024; C10M2217/026; C10M2217/028; C10M2217/04; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/086; C10M2219/087; C10M2219/089; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/047; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/02; C10M2225/04; C10M2225/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16; C10N2050/00; C10N2050/10; Y; Y10; Y10S; Y10S526/00; Y10S526/933
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
44 words
A LUBRICATING COMPOSITION A MAJOR AMOUNT OF A MINERAL LUBRICATION OIL FROM 0.01% TO 10% BY WEIGHT OF ANOUL-SOLUBLE BY HYDROLYZED COPOLYMER OF AN ALPHA HYDROCARBON-OLEFIN HAVING AT LEAST , CARBON ATOMS WITH A VINYL ESTER OF LOWER FATTY ACID HAVING FROM 1 TO
Claim 2
Dependent Claim
44 words
A LUBRICATING COMPOSITION A MAJOR AMOUNT OF A MINERAL LUBRICATION OIL FROM 0.01% TO 10% BY WEIGHT OF ANOUL-SOLUBLE BY HYDROLYZED COPOLYMER OF AN ALPHA HYDROCARBON-OLEFIN HAVING AT LEAST , CARBON ATOMS WITH A VINYL ESTER OF LOWER FATTY ACID HAVING FROM 1 TO
Claim 3
Dependent Claim
36 words
CARBON ATOMS REPECTIVELY, IN THE MOL RATIO OF FROM 1/.1 TO 1/5, RESPECTIVELY, SAID HYDROLYZED COPOLYMER PRODUCT HAVING A MOLECULAR WEIGHT OF FROM ABOUT 1,500 TO ABOUT 50,000, AND FROM 0.01% OF AN OIL-SOLUBLE ORGANIC DITHIOPHOSPHATE.
Claim 4
Dependent Claim
36 words
CARBON ATOMS REPECTIVELY, IN THE MOL RATIO OF FROM 1/.1 TO 1/5, RESPECTIVELY, SAID HYDROLYZED COPOLYMER PRODUCT HAVING A MOLECULAR WEIGHT OF FROM ABOUT 1,500 TO ABOUT 50,000, AND FROM 0.01% OF AN OIL-SOLUBLE ORGANIC DITHIOPHOSPHATE.
References Cited (Backward Citations)
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US2316090A
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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) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |