US2604453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New copolymer compositions
Assignee: Standard Oil Development Co
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Filing: 1948-12-30
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Granted: 1952-07-22
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Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 Alexander H Popkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:35
CPC Classifications
C; C10; C10M; C10M145/00; C10M145/02; C10M145/10; C10M145/12; C10M145/14; C08; C08L; C08L21/00; C08L33/00; C08L33/04; C08L33/06; C08L33/08; C10G; C10G73/00; C10G73/02; C10G73/04; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2217/00; C10M2217/02; C10M2217/024; C10M2217/026; C10M2217/06; C10M2221/00; C10M2221/02; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A COMPOSITION CONSISTING ESSENTIALLY OF A MINERAL OIL BASE STOCK AND FROM 0.1% TO 15% BY WEIGHT BASED ON TOTAL COMPOSITION OF A COPOLYMER OF 80% TO 95% LAURYL ACRYLATE AND 20% TO 5% METHYL ACRYLATE, SAID COPOLYMER HAVING AN AVERAGE SIDE CHAIN LENGTH IN THE RANGE OF 7.5 TO 10.6 CARBON ATOMS, SAID COMPOSITION HAVING A VISCOSITY INDEX SUBSTANTIALLY GREATER THAN THAT OF SAID MINERAL OIL.
Claim 2
Dependent Claim
67 words
A COMPOSITION CONSISTING ESSENTIALLY OF A MINERAL OIL BASE STOCK AND FROM 0.1% TO 15% BY WEIGHT BASED ON TOTAL COMPOSITION OF A COPOLYMER OF 80% TO 95% LAURYL ACRYLATE AND 20% TO 5% METHYL ACRYLATE, SAID COPOLYMER HAVING AN AVERAGE SIDE CHAIN LENGTH IN THE RANGE OF 7.5 TO 10.6 CARBON ATOMS, SAID COMPOSITION HAVING A VISCOSITY INDEX SUBSTANTIALLY GREATER THAN THAT OF SAID MINERAL OIL.
References Cited (Backward Citations)
US2125885A
Cited
GB492734A
Cited
FR818740A
Cited
US2097263A
Cited
GB487593A
Cited
US2270024A
Cited
US2407954A
Cited
US2403267A
Cited
US2412476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |