US3340243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous suspension polymerization of vinyl chloride in presence of a nonionic, water soluble, hydrophilic colloid and an acyl persulfonate
Assignee: Monsanto Co
•
Filing: 1963-06-10
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Granted: 1967-09-05
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Expires: 1983-06-10
Abstract
No abstract record available.
Inventors
- 👤 Ludwig A Beer
- 👤 Frederic J Locke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:09
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE PROCESS FOR THE HOMOPOLYMERIZATION OF VINYL CHLORIDE WHICH COMPRISES CONDUCTION THE POLYMERIZATION OF VINYL CHLORIDE MONOMER IN AQUEOUS SUSPENSION IN THE PRESENCE OF (1) NONIONIC, WATER SOLUBLE, HYDROPHILIC COLLOIDS AND (2) AN ACYL PERSULFONATE HAVING THE STRUCTURE:
Claim 2
Dependent Claim
38 words
THE PROCESS FOR THE HOMOPOLYMERIZATION OF VINYL CHLORIDE WHICH COMPRISES CONDUCTION THE POLYMERIZATION OF VINYL CHLORIDE MONOMER IN AQUEOUS SUSPENSION IN THE PRESENCE OF (1) NONIONIC, WATER SOLUBLE, HYDROPHILIC COLLOIDS AND (2) AN ACYL PERSULFONATE HAVING THE STRUCTURE:
References Cited (Backward Citations)
US2975162A
Cited
US3228919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |