US3157714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber-forming compositions
Assignee: Union Carbide Corp
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Filing: 1960-12-27
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Granted: 1964-11-17
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Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 Combe Edward M La
- 👤 Stewart Byron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:53
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A DYEABLE FIBER-FORMING COMPOSITION COMPRISING A BLEND OF (A) FROM ABOUT 70 PERCENT TO ABOUT 98 PERCENT OLEFINICALLY UNSATURATED MONOMER, CONTIAING AT LEAST 35 PERCENT BY WEIGHT OF POLYMERIZED ACRYLONITRILE AND (B) FROM ABOUT 2 PERCENT TOA BOUT 30 PERCENT BY WEIGHT OF A MODIFYING POLYMER SELECTED FROM THE GROUP CONSISTING OF (I) HOMOPOLYMERS OF AROMATIC ESTERS REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
62 words
A DYEABLE FIBER-FORMING COMPOSITION COMPRISING A BLEND OF (A) FROM ABOUT 70 PERCENT TO ABOUT 98 PERCENT OLEFINICALLY UNSATURATED MONOMER, CONTIAING AT LEAST 35 PERCENT BY WEIGHT OF POLYMERIZED ACRYLONITRILE AND (B) FROM ABOUT 2 PERCENT TOA BOUT 30 PERCENT BY WEIGHT OF A MODIFYING POLYMER SELECTED FROM THE GROUP CONSISTING OF (I) HOMOPOLYMERS OF AROMATIC ESTERS REPRESENTED BY THE GENERAL FORMULA:
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |