US2983709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly-alpha-olefins containing synergistic stabilizer combination of resorcinol monobenzoate and 2,2'-methylene bis-(6-tertiary butyl-p-cresol)
Assignee: Eastman Kodak Co
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Filing: 1959-05-20
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Granted: 1961-05-09
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Expires: 1979-05-20
Abstract
No abstract record available.
Inventors
- 👤 Gordon C Newland
- 👤 John W Tamblyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A SOLID POLY-A-OLEFIN COMPOSITION COMPRISING A POLYA-OLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE CONTAINING .001% TO 10% BY WEIGHT BASED ON SAID POLY-A-OLEFIN OF A STABILIZER COMBINATION COMPRISING RESORCINOL MONOBENZOATE AND 2,2''-METHYLENEBIS(6-TERTIARY-BUTYL-P-CRESOL), THE WEIGHT RATIO OF SAID RESORCINOL MONOBENZOATE TO SAID 2,2''-METHYLENEBIS(6-TERTIARY-BUTYL-P-CRESOL) BEING IN THE RANGE OF 1/30 TO 30/1.
Claim 2
Dependent Claim
53 words
A SOLID POLY-A-OLEFIN COMPOSITION COMPRISING A POLYA-OLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE CONTAINING .001% TO 10% BY WEIGHT BASED ON SAID POLY-A-OLEFIN OF A STABILIZER COMBINATION COMPRISING RESORCINOL MONOBENZOATE AND 2,2''-METHYLENEBIS(6-TERTIARY-BUTYL-P-CRESOL), THE WEIGHT RATIO OF SAID RESORCINOL MONOBENZOATE TO SAID 2,2''-METHYLENEBIS(6-TERTIARY-BUTYL-P-CRESOL) BEING IN THE RANGE OF 1/30 TO 30/1.
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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |