Patent US2773913A successfully refreshed from Google Patents.
US2773913A
Expired / Lapsed
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Fluorinating organic compounds with hydrogen fluoride containing hydroxonium ions
Assignee: Bayer AG
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Filing: 1953-10-06
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Granted: 1956-12-11
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Expires: 1973-10-06
Abstract
No abstract record available.
Inventors
- 👤 Goerrig Dieter
- 👤 Jonas Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:43
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/07; C07C17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN THE PROCESS FOR THE PRODUCTION OF FLUOROCHLOROETHANE BY THE ADDITION OF HYDROGEN FLUORIDE TO TRICHLOROETHYLENE THE STEP WHICH COMPRISES AUTOCLAVING AT A TEMPERATURE OF 130-135* C. AND A PRESSURE OF ABOUT 40 ATMOSPHERES FOR A PERIOD OF 22 HOURS A REACTION MIXTURE CONSISTING OF 18 KG. OF TRICHLOROETHYLENE, 60 G. OF HGCL2, 3 KG. OF HYDROGEN FLUORIDE AND 45 GRAMS OF BORON OXIDE, AND RECOVERING C2H2FCL3.
Claim 2
Dependent Claim
67 words
IN THE PROCESS FOR THE PRODUCTION OF FLUOROCHLOROETHANE BY THE ADDITION OF HYDROGEN FLUORIDE TO TRICHLOROETHYLENE THE STEP WHICH COMPRISES AUTOCLAVING AT A TEMPERATURE OF 130-135* C. AND A PRESSURE OF ABOUT 40 ATMOSPHERES FOR A PERIOD OF 22 HOURS A REACTION MIXTURE CONSISTING OF 18 KG. OF TRICHLOROETHYLENE, 60 G. OF HGCL2, 3 KG. OF HYDROGEN FLUORIDE AND 45 GRAMS OF BORON OXIDE, AND RECOVERING C2H2FCL3.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |