Patent US3193603A successfully refreshed from Google Patents.
US3193603A
Expired / Lapsed
US
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Production of acrylic fibers by spinning into a high solvent, low temperature spin bath
Assignee: Monsanto Co
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Filing: 1962-08-13
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Granted: 1965-07-06
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Expires: 1982-08-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Alvah L Rowe
- 👤 Thomas B Truscott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:29
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06; C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0066; C08L; C08L33/00; C08L33/18; C08L33/20; D01F; D01F6/00; D01F6/28; D01F6/38; D01F6/44; D01F6/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD FOR THE PRODUCTION OF AN ACRYLIC FIBER COMPOSED OF 94 PERCENT ACRYLONITIRLE AND 6 PERCENT VINYL ACETATE OF A DENIER FROM 0.5 TO 8 DENIER PER FILAMENT COMPRISING SPINNING A SOLUTION OF SAID POLYMER INTO A SPIN BATH COMPOSED OF 65 PERCENT OF AN ORGANIC SOLVENT, SAID SOLVENT BEING CHEMICALLY IDENTICAL TO THE SOLVENT OF SAID SOLUTION, AND 35 PERCENT WATER WITH THE SPIN BATH HELD AT A TEMPERATURE OF 32*C. WITH A JET STRETCH OF 0.5 AND A CASCADE STRETCH OF 7.0.
Claim 2
Independent Claim
85 words
A METHOD FOR THE PRODUCTION OF AN ACRYLIC FIBER COMPOSED OF 94 PERCENT ACRYLONITIRLE AND 6 PERCENT VINYL ACETATE OF A DENIER FROM 0.5 TO 8 DENIER PER FILAMENT COMPRISING SPINNING A SOLUTION OF SAID POLYMER INTO A SPIN BATH COMPOSED OF 65 PERCENT OF AN ORGANIC SOLVENT, SAID SOLVENT BEING CHEMICALLY IDENTICAL TO THE SOLVENT OF SAID SOLUTION, AND 35 PERCENT WATER WITH THE SPIN BATH HELD AT A TEMPERATURE OF 32*C. WITH A JET STRETCH OF 0.5 AND A CASCADE STRETCH OF 7.0.
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |