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The International trademark Durognost was filed as Figurative mark on 12/30/1958 at the World Intellectual Property Organization.
| Trademark form | Figurative mark |
| File reference | 215975 |
| Register number | 717391 |
| Countries | 
|
| Base trademark |
No. 717 391,
September 5, 1958
|
| Application date | December 30, 1958 |
| Expiration date | December 30, 2028 |
Trademark owner
Orleansstrasse 75
31135 HILDESHEIM
DE
31135 HILDESHEIM
DE
Trademark representatives
Friedenheimer Brücke 21
80639 München
DE
goods and services
01
Agents à déterminer la dureté de l'eau, surtout de l'eau
d'alimentation des chaudières
Trademark history
| Date | Document number | Area | Entry |
|---|---|---|---|
| December 30, 2018 | 2019/1 Gaz | Extension | |
| December 30, 2008 | 2009/5 Gaz | Extension | |
| July 3, 2007 | 2007/37 Gaz | Extension | |
| December 30, 1998 | 1999/1 Gaz | Extension | |
| February 21, 1997 | 1997/4 Gaz | Extension | |
| February 18, 1994 | 1994/3 LMi | Extension | |
| May 18, 1993 | 1993/6 LMi | Extension | |
| May 18, 1993 | 1993/7 LMi | Extension | |
| December 30, 1958 | 1978/12 LMi | DT | Registration |
| Partial deletion |
ID: 14215975