Patent US3636022A successfully refreshed from Google Patents.
US3636022A
Expired / Lapsed
US
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Nickel amide complexes of bisphenol sulfides
Assignee: Wyeth Holdings LLC
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Filing: 1969-04-09
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Granted: 1972-01-18
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Expires: 1989-04-09
Abstract
Abstract NICKEL AMIDE COMPLEXES OF 2,2''-THIOBIS(THIOBIS(P-ALKYLPHENOLS) ARE PROVIDED. THE COMPLEXES ARE PREPARED BYH THE REACTION OF A 1:1 NICKEL AQUO COMPLEX OF A 2,2''-THIOBIS(P-ALKYLPHENOL) WITH AN AMIDE. THE INVENTION ALSO PROVIDES STABLE POLYOLEFIN COMPOSITIONS CONTAINING SAID NICKEL AMIDE COMPLEXES OR A MIXTURE OF AN AMIDE AND THE AFOREMENTIONED NICKEL AQUO COMPLEX OF 2,2''-THIOBIS(P-ALKYLPHENOL).
Inventors
- 👤 John Harvey Bright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:46
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/04; C07F15/045; C08; C08K; C08K5/00; C08K5/0091
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |