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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
B01D 53/34 B01D 53/70 B01D 53/86 |
| (11) | Number of the document | 3041 |
| (13) | Kind of document | B |
| (21) | Application number | IP458 |
| (22) | Date of filing the application | 1993-03-26 |
| (41) | Date of publication of the application | 1994-04-25 |
| (45) | Date of publication of patent | 1994-09-25 |
| (30) | Number | Date | Country code |
| 42 10 055.0 | 1992-03-27 | DE |
| (71) |
Degussa Aktiengesellschaft,
Weissfrauenstrasse 9, 6000 Frankfurt (Main) 1,
DE
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| (72) |
Edgar BILGER, DE
Ernst Robert BARENSCHEE, DE John TARABOCCHIA, DE Wedigo VONWEDEL, FR |
| (73) |
Degussa Aktiengesellschaft,
Weissfrauenstrasse 9, 6000 Frankfurt (Main) 1,
DE
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| (74) |
Rita LAURINAVIČIŪTĖ,
Gedimino pr. 45-6, LT-01109 Vilnius,
LT
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| (54) | PROCESS FOR THE PURIFICATION OF WASTE GASES FROM HALOGENATED ORGANIC COMPOUNDS |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 1995-03-26 |