US2980648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized poly-alpha-olefin compositions
Assignee: Eastman Kodak Co
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Filing: 1958-03-31
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Granted: 1961-04-18
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Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
- 👤 William M Gearhart
- 👤 John W Tamblyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:50
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134; C08K5/1345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A SOLID POLY-A-OLEFIN COMPOSITION SUBSTANTIALLY FREE OF HALIDE MATERIAL COMPRISING A SOLID POLY-A-OLEFIN PREPARED FROM AN A-MONOOLEFINIC ALIPHATIC HYDROCARBON HAVING 2 TO 3 CARBON ATOMS CONTAINING 0.1% TO 10% BY WEIGHT BASED ON SAID POLY-A-OLEFIN OF A SUBSTITUTED PHENYL SALICYLATE SELECTED FROM THE GROUP CONSISTING OF 4-BIPHENYLYL-5-PHENYL SALICYLATE AND 4-BIPHENYLYL SALICYLATE.
Claim 2
Dependent Claim
51 words
A SOLID POLY-A-OLEFIN COMPOSITION SUBSTANTIALLY FREE OF HALIDE MATERIAL COMPRISING A SOLID POLY-A-OLEFIN PREPARED FROM AN A-MONOOLEFINIC ALIPHATIC HYDROCARBON HAVING 2 TO 3 CARBON ATOMS CONTAINING 0.1% TO 10% BY WEIGHT BASED ON SAID POLY-A-OLEFIN OF A SUBSTITUTED PHENYL SALICYLATE SELECTED FROM THE GROUP CONSISTING OF 4-BIPHENYLYL-5-PHENYL SALICYLATE AND 4-BIPHENYLYL SALICYLATE.
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) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |