US3038878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-stable poly-alpha-olefin compositions
Assignee: Eastman Kodak Co
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Filing: 1960-07-29
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Granted: 1962-06-12
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Expires: 1980-07-29
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
- 👤 M B Knowles
- 👤 Clarence E Tholstrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/36; C08K5/37; C08K5/372
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A SOLID POLY-A-OLEFIN COMPOSITION COMPRISING A SOLID POLY-A-OLEFIN OF AN A-MONOOLEFINS ALIPHATIC HYDROCARBON HAVING 2 TO 10 CARBON ATOMS AND A STABILIZER COMBINATION COMPRISING AT LEAST ABOUT 0.0005% BY WEIGHT BASED ON SAID POLY-A-OLEFIN OF A DIESTER OF 3,3''-THIODIPROPIONIC ACID HAVING THE FORMULA:
Claim 2
Dependent Claim
43 words
A SOLID POLY-A-OLEFIN COMPOSITION COMPRISING A SOLID POLY-A-OLEFIN OF AN A-MONOOLEFINS ALIPHATIC HYDROCARBON HAVING 2 TO 10 CARBON ATOMS AND A STABILIZER COMBINATION COMPRISING AT LEAST ABOUT 0.0005% BY WEIGHT BASED ON SAID POLY-A-OLEFIN OF A DIESTER OF 3,3''-THIODIPROPIONIC ACID HAVING THE FORMULA:
References Cited (Backward Citations)
US2972597A
Cited
US2976260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |