US2816147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of perhaloacetyl peroxides
Assignee: 3M Co
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Filing: 1955-03-07
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Granted: 1957-12-10
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Expires: 1975-03-07
Abstract
No abstract record available.
Inventors
- 👤 Charles W Weber
- 👤 William S Barnhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:46
CPC Classifications
C; C07; C07C; C07C407/00; C07C407/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR THE CONTINUOUS PREPARATION OF A PREHALOACETYL PEROXIDE WHICH COMPRISES CONTINOUSLY COUNTERCURRENTLY CONTACTING IN A CONTACTING ZONE A MIXTURE OF AN INORGANIX PEROXIDE AND A BRINE SOLUTION WITH A MIXTURE OF A PERHALOGENATED ACETYL HALIDE AND A HALOGENATED HYDROCARBON WHILE MAINTAINING THE TEMPERATURE IN THE ZONE BETWEEN 0*C. AND THE FREEZING TEMPERATURE OF THE MIXTURE, AND CONTINOUSLY RECOVERING A MIXTURE OF THE PERHALOACETYLE PEROXIDE AND THE HALOGENATED HYDROCARBON AS A PRODUCT OF THE PROCESS.
Claim 2
Dependent Claim
76 words
A PROCESS FOR THE CONTINUOUS PREPARATION OF A PREHALOACETYL PEROXIDE WHICH COMPRISES CONTINOUSLY COUNTERCURRENTLY CONTACTING IN A CONTACTING ZONE A MIXTURE OF AN INORGANIX PEROXIDE AND A BRINE SOLUTION WITH A MIXTURE OF A PERHALOGENATED ACETYL HALIDE AND A HALOGENATED HYDROCARBON WHILE MAINTAINING THE TEMPERATURE IN THE ZONE BETWEEN 0*C. AND THE FREEZING TEMPERATURE OF THE MIXTURE, AND CONTINOUSLY RECOVERING A MIXTURE OF THE PERHALOACETYLE PEROXIDE AND THE HALOGENATED HYDROCARBON AS A PRODUCT OF THE PROCESS.
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |