Patent US3592800A successfully refreshed from Google Patents.
US3592800A
Expired / Lapsed
US
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Polymerization of vinyl chloride in aqueous suspension in the presence of low viscosity polyvinyl alcohol and a protective colloid
Assignee: Individual
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Filing: 1968-11-26
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Granted: 1971-07-13
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Expires: 1988-11-26
Abstract
Abstract PROCESS FOR POLYMERIZING VINYL CHLORIDE IN AQUEOUS SUSPENSION IN THE PRESENCE OF CONVENTIONAL HIGH MOLECULAR WEIGHT PROTECTIVE COLLOIDS AND A LOW MOLECULAR WEIGHT POLYVINLY ALCOHOL WHICH IMPROVES THE ABSORPTION OF PLASTICIZER WITHOUT AFFECTING THE HIGH ELECTRICAL RESISTANCE.
Inventors
- 👤 Werner Oschmann
- 👤 Richard Greger
- 👤 Alfred Hauss
- 👤 Gernot Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:31
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; Y; Y10; Y10S; Y10S526/00; Y10S526/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |