US3392142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cis-diene rubbers stabilized with dithiocarbamyl derivatives
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1963-09-20
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Granted: 1968-07-09
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Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 Leyland Boris Nicholas
- 👤 Scott Gerald
- 👤 Williams Derek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/39
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
26 words
A COMPOSITION OF MATTER WHICH COMPRISES SYNTHETIC CIS-DIENE RUBBER CONTAINING A STABILIZING AMOUNT OF AN ESTER OF A DIALKYLDITHIOCARBAMIC ACID SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
26 words
A COMPOSITION OF MATTER WHICH COMPRISES SYNTHETIC CIS-DIENE RUBBER CONTAINING A STABILIZING AMOUNT OF AN ESTER OF A DIALKYLDITHIOCARBAMIC ACID SELECTED FROM THE GROUP CONSISTING OF
Claim 3
Dependent Claim
29 words
THE COMPOSITION OF MATTER AS CLAIMED IN CLAIM 1 WHICH ADDITINALLY INCLUDES AN EFFECTIVE AMOUNT OF AN ANTIOXIDANT SELECTED FROM THE GROUP CONSISTING OF 2:6-DITERT.-BUTYL-P-CRESOL, BIS(2-HYDROXY-3-TERT.-BUTYL5-METHYLPHENYL)METHANE, BIX-HYDROXY-3-TERT.-BUTYL-6-METHYLPHENYL)METHANE AND PHENYL-B-NAPHTHYLAMINE.
References Cited (Backward Citations)
US2735833A
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US2789962A
Cited
GB802018A
Cited
US2974082A
Cited
FR1278583A
Cited
GB955078A
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US3209001A
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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) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |