US3349063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylonitrile-thiosulfuric acid compound copolymers
Assignee: Bayer AG
•
Filing: 1964-07-31
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Granted: 1967-10-24
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Expires: 1984-07-31
Abstract
No abstract record available.
Inventors
- 👤 Mayer Rudi
- 👤 Kuntz Egon
- 👤 Suling Carlhans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:13
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F220/46; C08F28/00; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A COPOLYMER COMPRISING AT LEAST 70% ACRYLONITRILE AND 0.1 TO 10% OF A COPOLYMERIZABLE THIOSULFURIC ACID COMPOUND OF THE FORMULA R-S-SO3X, WHEREIN R IS SELECTED FROM THE GRUP CONSISTING OF AN ETHYLENICALLY UNSATURATED ALKYL AND ARYL RADICAL AND WHEREIN X IS SELECTD FROM THE GROUP CONSISTING OF HYDROGEN, AN ALKALIMETAL, THE AMMONIUM AND A SUBSTITUTED AMMONIUM RADICAL.
Claim 2
Dependent Claim
57 words
A COPOLYMER COMPRISING AT LEAST 70% ACRYLONITRILE AND 0.1 TO 10% OF A COPOLYMERIZABLE THIOSULFURIC ACID COMPOUND OF THE FORMULA R-S-SO3X, WHEREIN R IS SELECTED FROM THE GRUP CONSISTING OF AN ETHYLENICALLY UNSATURATED ALKYL AND ARYL RADICAL AND WHEREIN X IS SELECTD FROM THE GROUP CONSISTING OF HYDROGEN, AN ALKALIMETAL, THE AMMONIUM AND A SUBSTITUTED AMMONIUM RADICAL.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |