US3017443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of incorporating a mixture of 2, 6-dialkoxy-4-alkylphenol and 2, 2'-alkylene-bis-(4, 6-dialkylphenol) in rubber, and resulting product
Assignee: Universal Oil Products Co
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Filing: 1957-12-30
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Granted: 1962-01-16
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Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Chenicek
- 👤 William L Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
THE METHOD OF PREVENTING THE CRACKING OF NATURAL RUBBER DUE TO OZONE WHICH COMPRISES INCORPORATING THEREIN FROM ABOUT 0.25% TO ABOUT 10% BY WEIGHT OF A SYNERGISTIC MIXTURE OF FROM ABOUT 1 TO ABOUT 10 PARTS OF 2,6-DIALKOXY-4-ALKYLPHENOL AND 1 PART OF 2,2''-ALKYLENEBIS-(4,6-DIALKYLPHENOL).
Claim 2
Independent Claim
43 words
THE METHOD OF PREVENTING THE CRACKING OF NATURAL RUBBER DUE TO OZONE WHICH COMPRISES INCORPORATING THEREIN FROM ABOUT 0.25% TO ABOUT 10% BY WEIGHT OF A SYNERGISTIC MIXTURE OF FROM ABOUT 1 TO ABOUT 10 PARTS OF 2,6-DIALKOXY-4-ALKYLPHENOL AND 1 PART OF 2,2''-ALKYLENEBIS-(4,6-DIALKYLPHENOL).
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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |