US3557256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder thermosetting compositions based on bulk polymerized polyvinyl chloride and polyacrylate plasticizer
Assignee: C-J Corp
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Filing: 1969-06-04
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Granted: 1971-01-19
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Expires: 1989-06-04
Abstract
Abstract POLYVINYL CHLORIDE PRODUCTS POSSESSING THERMOSET CHARACTERISTICS AND WHICH ARE HARD, STRONG AND TOUGH, ARE PRODUCED BY CURING UNDER HEAT AND PRESSURE A POWDER IN WHICH A POLYACRYLATE PLASTICIZER IS ABSORBED BY PARTICLES OF POLYMERIZED THERMOPLASTIC POLYVINYL CHLORIDE FREE OF EMULSIFYING AND SUSPENDING AGENTS SUCH AS BULK POLYMERIZED POLYVINYL CHLORIDE.
Inventors
- 👤 Irving E Muskat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:30
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/02; C08F259/04
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |