Patent US2564024A successfully refreshed from Google Patents.
US2564024A
Expired / Lapsed
US
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Method of making halocarbon polymers
Assignee: Individual
•
Filing: 1948-05-21
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Granted: 1951-08-14
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Expires: 1968-05-21
Abstract
No abstract record available.
Inventors
- 👤 William T Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:29
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD USEFUL FOR PRODUCING POLYMERS WHICH SOFTEN ABOVE 200* C. WHICH COMPRISES HEATING AN OLEFIN SELECTED FROM THR GROUP OF TRIFLUOROMONOCHLOROETHYLENE AND DIFLUORODICHLOROETHYLENE AT A TEMPERATURE IN THE RANGE OF 40* C. TO 150* C. IN THE PRESENCE OF ELEMENTAL OXYGEN AS A POLYMERIZATION PROMOTER TO PRODUCE A SOLID POLYMER.
Claim 2
Independent Claim
51 words
A METHOD USEFUL FOR PRODUCING POLYMERS WHICH SOFTEN ABOVE 200* C. WHICH COMPRISES HEATING AN OLEFIN SELECTED FROM THR GROUP OF TRIFLUOROMONOCHLOROETHYLENE AND DIFLUORODICHLOROETHYLENE AT A TEMPERATURE IN THE RANGE OF 40* C. TO 150* C. IN THE PRESENCE OF ELEMENTAL OXYGEN AS A POLYMERIZATION PROMOTER TO PRODUCE A SOLID POLYMER.
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) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |