US2843558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising acrylonitrile polymers and diamides
Assignee: Asahi Kasei Corp
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Filing: 1953-08-21
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Granted: 1958-07-15
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Expires: 1973-08-21
Abstract
No abstract record available.
Inventors
- 👤 Fujisaki Yoshisato
- 👤 Kobayashi Hidehiko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A NEW COMPOSITION OF MATTER COMPRISING A POLYMER OF ACRYLONITRILE CONTAINING IN THE POLYMER MOLECULE AT LEAST 85% BY WEIGHT OF ACRYLONITRILE AND A COMPOUND TAKEN FROM THE CLASS CONSISTING OF BENZOYL DIMETHYLAMIDE AND PHTHALOYL TETRAMETHYLDIAMIDE.
Claim 2
Dependent Claim
36 words
A NEW COMPOSITION OF MATTER COMPRISING A POLYMER OF ACRYLONITRILE CONTAINING IN THE POLYMER MOLECULE AT LEAST 85% BY WEIGHT OF ACRYLONITRILE AND A COMPOUND TAKEN FROM THE CLASS CONSISTING OF BENZOYL DIMETHYLAMIDE AND PHTHALOYL TETRAMETHYLDIAMIDE.
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |