Patent US3274150A successfully refreshed from Google Patents.
US3274150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamides stabilized with alkali metal iodides in combination with phenylene diamines or a bis phenol
Assignee: EIDP Inc
•
Filing: 1962-10-24
•
Granted: 1966-09-20
•
Expires: 1982-10-24
Abstract
No abstract record available.
Inventors
- 👤 Baevsky Melvin Myron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K3/00; C08K3/16; C08K5/16; C08K5/17; C08K5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOSITION OF MATTER COMPRISING A POLYAMIDE CONTAINING FROM 0.1-5% BY WEIGHT OF INORGANIC ANTIOXIDANT SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM IODIDE AND FROM 0.1-5% BY WEIGHT OF AN ORGNIC ANTIOXIDANT FOR RUBBER, SAID ANTIOXIDANT HAVING A BOILING POINT ABOVE 270*C. AND BEING SELECTED FROM THE GROUP CONSISTING OF 4,4''-BUTYLIDENE-BIS-6-TERITARY BUTYL-MCRESOL, N-ISOPROPYL-N''-PHENYL-P-PHENYLENEDIAMINE, N,N''NAPHTHYL-P-PHENYLENEDIAMINE, N-CYCLOHEXYL-N''-PHENYL-PPHENYLENEDIAMINE AND 2,2''-METHYLENE-BIS(4-ETHYL-6-TERTIARY BUTYL PHENOL).
Claim 2
Dependent Claim
61 words
A COMPOSITION OF MATTER COMPRISING A POLYAMIDE CONTAINING FROM 0.1-5% BY WEIGHT OF INORGANIC ANTIOXIDANT SELECTED FROM THE GROUP CONSISTING OF SODIUM AND POTASSIUM IODIDE AND FROM 0.1-5% BY WEIGHT OF AN ORGNIC ANTIOXIDANT FOR RUBBER, SAID ANTIOXIDANT HAVING A BOILING POINT ABOVE 270*C. AND BEING SELECTED FROM THE GROUP CONSISTING OF 4,4''-BUTYLIDENE-BIS-6-TERITARY BUTYL-MCRESOL, N-ISOPROPYL-N''-PHENYL-P-PHENYLENEDIAMINE, N,N''NAPHTHYL-P-PHENYLENEDIAMINE, N-CYCLOHEXYL-N''-PHENYL-PPHENYLENEDIAMINE AND 2,2''-METHYLENE-BIS(4-ETHYL-6-TERTIARY BUTYL PHENOL).
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |