US2594293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylonitrile peotein derivatives
Assignee: —
•
Filing: —
•
Granted: 1952-04-29
•
Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:47
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06; C; C08; C08L; C08L89/00; C08F; C08F289/00; D01F; D01F4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE METHOD WHICH COMPRISES REACTING A PROTIEN COMPOUND WITH ACRYLONITRILE IN AQUEOUS ALKALINE DISPERSION TO PRODUCE A MODIFIED PROTEIN COMPOUND, AGING THE DISPERSION UNTIL THE VISCOSITY OF THE DISPERSION INCREASES TO A DEGREE SUITABLE FOR SPINNING, AND SPINNING THE DISPERSION INTO FIBERS.
Claim 2
Independent Claim
42 words
THE METHOD WHICH COMPRISES REACTING A PROTIEN COMPOUND WITH ACRYLONITRILE IN AQUEOUS ALKALINE DISPERSION TO PRODUCE A MODIFIED PROTEIN COMPOUND, AGING THE DISPERSION UNTIL THE VISCOSITY OF THE DISPERSION INCREASES TO A DEGREE SUITABLE FOR SPINNING, AND SPINNING THE DISPERSION INTO FIBERS.
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) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |