US3042648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising an acrylonitrile polymer and a 2,4-diamino-5-aryl-6-hydroxy pyrimidine dye
Assignee: Wyeth Holdings LLC
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Filing: 1958-04-25
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Granted: 1962-07-03
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Expires: 1978-04-25
Abstract
No abstract record available.
Inventors
- 👤 Charles E Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/3462
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A COMPOSITION OF MATTER COMPRISING (1) A POLYMER CONSISTING OF 85 TO 100% ACRYLONITRILE WITH 0 TO 15% OF AT LEAST ONE NON-BASIC MONOETHYLENIC MONOMER COPOLYMERIZABLE WITH ACRYLONITRILE AND (2) A DYE SELECTED FROM THE GROUP CONSISTING OF 2,4-DIAMINO-5-(P-ANISYLAZO)-6HYDROXYPYRIMIDINE AND 2,4-DIAMINO-5-(P-TOLYLAZO)-6HYDROXYPYRIMIDINE.
Claim 2
Dependent Claim
41 words
A COMPOSITION OF MATTER COMPRISING (1) A POLYMER CONSISTING OF 85 TO 100% ACRYLONITRILE WITH 0 TO 15% OF AT LEAST ONE NON-BASIC MONOETHYLENIC MONOMER COPOLYMERIZABLE WITH ACRYLONITRILE AND (2) A DYE SELECTED FROM THE GROUP CONSISTING OF 2,4-DIAMINO-5-(P-ANISYLAZO)-6HYDROXYPYRIMIDINE AND 2,4-DIAMINO-5-(P-TOLYLAZO)-6HYDROXYPYRIMIDINE.
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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |