Patent US3061597A successfully refreshed from Google Patents.
US3061597A
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Vinyl cyanide/n-vinyl-3-morpholinone copolymers
Assignee: Dow Chemical Co
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Filing: 1960-03-03
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Granted: 1962-10-30
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Expires: 1980-03-03
Abstract
No abstract record available.
Inventors
- 👤 Billy E Burgert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:26
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; D; D01; D01F; D01F6/00; D01F6/28; D01F6/38; Y; Y10; Y10S; Y10S8/00; Y10S8/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A FIBER-FORMING COPOLYMER COCMPRISES OF: (1) BETWEEN ABOUT 80 AND ABOUT 99 WEIGHT PERCENT, BASED ON POLYMER WEIGHT, OF INTERPOLYMERIZED VINYL CYANIDE; AND (2) BETWEEN ABOUT 20 AND ABOUT 1 WEIGHT PERCENT, BASED ON COPOLYMER WEIGHT, OF AN INTERPOLUMERIZED N-VINLY-3MORPHOLINONE MONOMER, SAID N-VINYL-3-MORPHOLINONE MONOMER BEING OF THE STRUCTURE:
Claim 2
Dependent Claim
48 words
A FIBER-FORMING COPOLYMER COCMPRISES OF: (1) BETWEEN ABOUT 80 AND ABOUT 99 WEIGHT PERCENT, BASED ON POLYMER WEIGHT, OF INTERPOLYMERIZED VINYL CYANIDE; AND (2) BETWEEN ABOUT 20 AND ABOUT 1 WEIGHT PERCENT, BASED ON COPOLYMER WEIGHT, OF AN INTERPOLUMERIZED N-VINLY-3MORPHOLINONE MONOMER, SAID N-VINYL-3-MORPHOLINONE MONOMER BEING OF THE STRUCTURE:
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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |