US3063962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins containing 4, 4'- and 2, 4'-dialkylaminodiphenyl ethers as antioxidants
Assignee: Universal Oil Products Co
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Filing: 1960-06-06
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Granted: 1962-11-13
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Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Henryk A Cyba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:09
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
POLYOLEFIN PLASTIC SELECTED FROM THE GROUP CONSITING OF POLYETHYLENE, POLYPROPYLENE AND POLYBUTYLENE NORMALLY SUBJECT TO OXIDATIVE DETERIORATION CONTAINING AN ANTIOXIDIZING CONCENTRATION OF AN OXYGEN ETHER SELECTED FROM THE GROUP CONSISTING OF 4,4''-AND 2,4''-DIALKYLAMINODIPHENYL ETHERS IN WHICH EACH ALKYL GROUP CONTAINS FROM 3 TO 20 CARBON ATOMS AND 4,4''- AND 2,4''-DICYCLOHEXYLAMINODIPHENYL ETHERS.
Claim 2
Dependent Claim
51 words
POLYOLEFIN PLASTIC SELECTED FROM THE GROUP CONSITING OF POLYETHYLENE, POLYPROPYLENE AND POLYBUTYLENE NORMALLY SUBJECT TO OXIDATIVE DETERIORATION CONTAINING AN ANTIOXIDIZING CONCENTRATION OF AN OXYGEN ETHER SELECTED FROM THE GROUP CONSISTING OF 4,4''-AND 2,4''-DIALKYLAMINODIPHENYL ETHERS IN WHICH EACH ALKYL GROUP CONTAINS FROM 3 TO 20 CARBON ATOMS AND 4,4''- AND 2,4''-DICYCLOHEXYLAMINODIPHENYL ETHERS.
References Cited (Backward Citations)
GB430335A
Cited
US2654722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |