US2580393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylonitrile polymer compositions
Assignee: EIDP Inc
•
Filing: 1949-08-09
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Granted: 1952-01-01
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Expires: 1969-08-09
Abstract
No abstract record available.
Inventors
- 👤 Beaman Ralph Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:56
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/096; C08J2333/00; C08J2333/18; C08J2333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A NEW COMPOSITION OF MATTER COMPRISING A MEMBER OF THE GROUP CONSISTING OF N-ACETYL MORPHOLINE, N-ACETYL PYRROLIDINE, N,N''-DIACETYLN,N'' - DIMETHYLHYDRAZINE, N,N'' - DIACETYL - N,N''DIMETHYLMETHYLENEDIAMINE, N,N''-DIACETYL-N,N''DMETHYLETHYLENEDIAMINE AND N,N'' - DIACETYL PIPERAZINE AND A POLYMER OF ACRYLONITRELE CONTAINING IN THE POLYMER MOLECULE AT LEAST 85% BY WEIGHT OF ACRYLONITRILE.
Claim 2
Dependent Claim
48 words
A NEW COMPOSITION OF MATTER COMPRISING A MEMBER OF THE GROUP CONSISTING OF N-ACETYL MORPHOLINE, N-ACETYL PYRROLIDINE, N,N''-DIACETYLN,N'' - DIMETHYLHYDRAZINE, N,N'' - DIACETYL - N,N''DIMETHYLMETHYLENEDIAMINE, N,N''-DIACETYL-N,N''DMETHYLETHYLENEDIAMINE AND N,N'' - DIACETYL PIPERAZINE AND A POLYMER OF ACRYLONITRELE CONTAINING IN THE POLYMER MOLECULE AT LEAST 85% BY WEIGHT OF ACRYLONITRILE.
References Cited (Backward Citations)
US1986854A
Cited
US2404719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |