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The US trademark CHALLENGE SERIES was filed as Word mark on 02/16/1988 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 01/03/1989.
The current status of the mark is "CANCELLED - SECTION 8".
| Trademark form | Word mark |
| File reference | 73711500 |
| Register number | 1518868 |
| Application date | February 16, 1988 |
| Publication date | October 11, 1988 |
| Entry date | January 3, 1989 |
Trademark owner
818 OLIVE STREET
63101 ST. LOUIS
US
63101 ST. LOUIS
US
818 OLIVE ST.
63101 ST. LOUIS
US
63101 ST. LOUIS
US
Trademark representatives
goods and services
16
PRINTED CONTINUING EDUCATION TEST PAMPHLETS IN THE FIELD OF CLINICAL LABORATORY SCIENCE
ID: 1373711500