US2960488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly-alpha-olefins containing substituted ureas
Assignee: Eastman Kodak Co
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Filing: 1958-04-25
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Granted: 1960-11-15
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Expires: 1978-04-25
Abstract
No abstract record available.
Inventors
- 👤 John W Tamblyn
- 👤 Wayne V Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:34
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/21; C08K5/36; C08K5/39; C08K5/405
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A SOLID POLY-A-OLEFIN COMPOSITION COMPRISING A SOLID POLY-A-OLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE CONTAINING 0.1% TO 10% BY WEIGHT BASED ON SAID POLY-A-OLEFIN OF A SUBSTITUTED UREA SELECTED FROM THE GROUP CONSISTING OF 1-(P-HYDROXYPHENYL)-3-PHENYLUREA, 1- (P-HYDROXYPHENYL) - 1 - METHYL 3-PHENYLUREA, 1,3-DI-(P-METHOXYPHENYL) UREA, 1,3-DI-(PHYDROXYPHENYL) THIOUREA AND 1,1''-(4-METHYL-1,3-PHENYLENE) BIAS(3-(P-HYDROXYPHENYL)-3-METHYLUREA).
Claim 2
Dependent Claim
52 words
A SOLID POLY-A-OLEFIN COMPOSITION COMPRISING A SOLID POLY-A-OLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE CONTAINING 0.1% TO 10% BY WEIGHT BASED ON SAID POLY-A-OLEFIN OF A SUBSTITUTED UREA SELECTED FROM THE GROUP CONSISTING OF 1-(P-HYDROXYPHENYL)-3-PHENYLUREA, 1- (P-HYDROXYPHENYL) - 1 - METHYL 3-PHENYLUREA, 1,3-DI-(P-METHOXYPHENYL) UREA, 1,3-DI-(PHYDROXYPHENYL) THIOUREA AND 1,1''-(4-METHYL-1,3-PHENYLENE) BIAS(3-(P-HYDROXYPHENYL)-3-METHYLUREA).
References Cited (Backward Citations)
GB609177A
Cited
US2651623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |