US3565877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Redox polymerization process
Assignee: Monsanto Co
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Filing: 1968-01-17
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Granted: 1971-02-23
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Expires: 1988-01-17
Abstract
Abstract ACRYLIC POLYMERS HAVE BEEN PREPARED IN GOOD YIELDS EMPLOYING A REDOX CATALYST SYSTEM COMPOSED OF A MIXTURE OF HYPOCHLORITE AND CHLORITE IONS IN SOLUTION ACTIVATED IN AN OXIDIZABLE SULFOXY COMPOUND. THE POLYMERIZATION IS ENHANCED BY SMALL AMOUNTS OF HEAVY METAL SEQUESTERING AGENTS.
Inventors
- 👤 Sergio Lo Monaco
- 👤 Luigi Patron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:34
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/42; C08F20/44; C08F2/00; C08F2/12; C08F2/16
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |