US3293199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the polymerisation of vinyl chloride
Assignee: British Geon Ltd
•
Filing: 1963-07-31
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Granted: 1966-12-20
•
Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Abercrombie Malcolm James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:54
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PROCESS FOR THE PRODUCTION OF VINYL CHLORIDE POLYMERS AND COPOLYMERS OF VINYL CHLORIDE WITH OTHER MONOMERS WHICH COMPRISES MIXING VINYL CHLORIDE OR VINYL CHLORIDE TOGETHER WITH OTHER COPOLYMERISABLE MONOMERS WITH AN OIL SOLUBLE POLYMERISATION INITIATOR, A SUBSTITUTED CELLULOSE COMPOUND AND STEARYL ALCOHOL TO FORM AN AQUEOUS SUSPENSION, POLYMERISING THE SUSPENSION AND RECOVERING THE FORMED POLYMERS OR COPOLYMERS.
Claim 2
Dependent Claim
58 words
A PROCESS FOR THE PRODUCTION OF VINYL CHLORIDE POLYMERS AND COPOLYMERS OF VINYL CHLORIDE WITH OTHER MONOMERS WHICH COMPRISES MIXING VINYL CHLORIDE OR VINYL CHLORIDE TOGETHER WITH OTHER COPOLYMERISABLE MONOMERS WITH AN OIL SOLUBLE POLYMERISATION INITIATOR, A SUBSTITUTED CELLULOSE COMPOUND AND STEARYL ALCOHOL TO FORM AN AQUEOUS SUSPENSION, POLYMERISING THE SUSPENSION AND RECOVERING THE FORMED POLYMERS OR COPOLYMERS.
References Cited (Backward Citations)
US3029229A
Cited
US3042665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |