US3772245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins stabilized with organic hydrazine compounds and phenolic antioxidants
Assignee: Novartis Corp
•
Filing: 1972-03-08
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Granted: 1973-11-13
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Expires: 1992-03-08
Abstract
Abstract ALKYLHYDROXYPHENYLALKANOYLHYDRAZINES OR ALKYLHYDROXYBENZOYLHYDRAZINES AND PHENOLIC ANTIOXIDANTS STABILIZED OLEFIN POLYMERS IN THE PRSENCE OF METALS.
Inventors
- 👤 M Dexter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/24; C08K5/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |