US2601256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylonitrile polymers
Assignee: Industrial Rayon Corp
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Filing: 1950-10-27
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Granted: 1952-06-24
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Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
- 👤 Herman A Bruson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:17
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F220/46; D; D01; D01F; D01F6/00; D01F6/02; D01F6/18; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AS A NEW COMPOSITION OF MATTER, A WATERINSOLUBLE COPOLYMER DERIVED BY THE POLYMERIZATION OF A MIXTURE COMPRISING ACRYLONITRILE AND AN UNSATURATED SULFONIC ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN UNSATURATED SULFONIC ACID AND A WATER-SOLUBLE SALT OF AN UNSATURATED SULFONIC ACID; SAID SULFONIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
49 words
AS A NEW COMPOSITION OF MATTER, A WATERINSOLUBLE COPOLYMER DERIVED BY THE POLYMERIZATION OF A MIXTURE COMPRISING ACRYLONITRILE AND AN UNSATURATED SULFONIC ACID COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN UNSATURATED SULFONIC ACID AND A WATER-SOLUBLE SALT OF AN UNSATURATED SULFONIC ACID; SAID SULFONIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US2527300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |