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The US trademark DERWENT PATENTS CITATION INDEX was filed as Word mark on 12/08/1995 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 08/26/1997.
The current status of the mark is "REGISTERED AND RENEWED".
| Trademark form | Word mark |
| File reference | 75040311 |
| Register number | 2090555 |
| Application date | December 8, 1995 |
| Publication date | June 3, 1997 |
| Entry date | August 26, 1997 |
Trademark owner
160 BLACKFRIARS ROAD
SE1 8EZ LONDON
GB
SE1 8EZ LONDON
GB
Trademark representatives
goods and services
42
information services, namely, services providing online access to patent citation information
ID: 1375040311