US3159599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-oxidant stabilizer
Assignee: Vibrantz Corp
•
Filing: 1960-03-14
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Granted: 1964-12-01
•
Expires: 1980-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Meek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:09
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/36; C08K5/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A COMPOSITION COMPRISING POLYPROPYLENE AND BETWEEN ABOUT 0.05% TO 0.5% BY WEIGHT OF SAID POLYPROPYLENE OF A TWO-COMPONENT MIXTURE CONSISTING OF CADMIUM DILAURYL DIMERCAPTIDE AND BIS(3,5-DIISOPROPYL-4-HYDROXY PHENYL) PHENYL METHANE, SAID MERCAPTIDE BEING PRESENT IN THE MIXTURE AT A WEIGHT RATIO TO SAID PHENOLIC COMPOUND OF ABOUT 0.2/1 TO 45/1.
Claim 2
Dependent Claim
49 words
A COMPOSITION COMPRISING POLYPROPYLENE AND BETWEEN ABOUT 0.05% TO 0.5% BY WEIGHT OF SAID POLYPROPYLENE OF A TWO-COMPONENT MIXTURE CONSISTING OF CADMIUM DILAURYL DIMERCAPTIDE AND BIS(3,5-DIISOPROPYL-4-HYDROXY PHENYL) PHENYL METHANE, SAID MERCAPTIDE BEING PRESENT IN THE MIXTURE AT A WEIGHT RATIO TO SAID PHENOLIC COMPOUND OF ABOUT 0.2/1 TO 45/1.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |