US2793202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of trifluorobromoethylene
Assignee: MW Kellogg Co
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Filing: 1954-05-27
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Granted: 1957-05-21
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Expires: 1974-05-27
Abstract
No abstract record available.
Inventors
- 👤 John M Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
C; C08; C08F; C08F114/00; C08F114/18; C08F114/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A METHOD FOR FORMING A SOLID HOMOPOLYMER OF TRIFLUOROBROMOETHYLENE WHICH COMPRISES POLYMERIZING TRIFLUOROBROMOETHYLENE IN THE PRESENCE OF POLYMERIZATION PROMOTER COMPRISING A PEROXY COMPOUND OF THE GROUP CONSISTING OF INORGANIC PERSULFATES AND HALOGEN-SUBSTITUTED ACETYL PEROXIDES AT A TEMPERATURE BETWEN ABOUT -10*C. AND ABOUT 25*C.
Claim 2
Independent Claim
43 words
A METHOD FOR FORMING A SOLID HOMOPOLYMER OF TRIFLUOROBROMOETHYLENE WHICH COMPRISES POLYMERIZING TRIFLUOROBROMOETHYLENE IN THE PRESENCE OF POLYMERIZATION PROMOTER COMPRISING A PEROXY COMPOUND OF THE GROUP CONSISTING OF INORGANIC PERSULFATES AND HALOGEN-SUBSTITUTED ACETYL PEROXIDES AT A TEMPERATURE BETWEN ABOUT -10*C. AND ABOUT 25*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-20 | 1960-11-19 | 1961-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-20 | 1964-11-19 | 1965-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-20 | 1968-11-19 | 1969-05-21 | $7700.00 | Window Closed / Lapsed |