Patent US3306955A successfully refreshed from Google Patents.
US3306955A
Expired / Lapsed
US
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Bacteriostatic acrylonitrile polymers
Assignee: Dow Chemical Co
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Filing: 1962-03-26
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Granted: 1967-02-28
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred J Lowes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:54
CPC Classifications
D; D06; D06M; D06M16/00; C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/298
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
COMPOSITION OF MATTER, THE ESSENTIAL CONSTITUENTS OF WHICH ARE A FIBER-FORMING ACRYLONITRILE POLYMER WHICH CONTAINS IN THE POLYMER MOLECULE AT LEAST ABOUT ,85 WEIGHT PERCENT OF ACRYLONITRILE, THE BALANCE BEING ANOTHER MONOETHYLENICALLY UNSATURATED MONOMRIC MATERIAL THAT IS COPOLYMERIZABLE WITH ACRYLONITRILE, HAVING DISPERSED THEREIN; (1) AT LEAST ABOUT 1 WEIGHT PERCENT BASED ON THE WEIGHT OF SAID FIBER-FORMING POLYMER OF POLYVINYLPYRROLIDONE; AND (2) AT LEST ABOUT 0.5 WEIGHT PERCENT BASED ON THE WEIGHT OF SAID FIBER-FORMING POLYMER OF DIBUTYL 2,4,6-TRICHLOROPHENOXYTIN HYDROXIDE.
Claim 2
Dependent Claim
80 words
COMPOSITION OF MATTER, THE ESSENTIAL CONSTITUENTS OF WHICH ARE A FIBER-FORMING ACRYLONITRILE POLYMER WHICH CONTAINS IN THE POLYMER MOLECULE AT LEAST ABOUT ,85 WEIGHT PERCENT OF ACRYLONITRILE, THE BALANCE BEING ANOTHER MONOETHYLENICALLY UNSATURATED MONOMRIC MATERIAL THAT IS COPOLYMERIZABLE WITH ACRYLONITRILE, HAVING DISPERSED THEREIN; (1) AT LEAST ABOUT 1 WEIGHT PERCENT BASED ON THE WEIGHT OF SAID FIBER-FORMING POLYMER OF POLYVINYLPYRROLIDONE; AND (2) AT LEST ABOUT 0.5 WEIGHT PERCENT BASED ON THE WEIGHT OF SAID FIBER-FORMING POLYMER OF DIBUTYL 2,4,6-TRICHLOROPHENOXYTIN HYDROXIDE.
References Cited (Backward Citations)
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Cited
US2989360A
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US2991183A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |