This page contains all the U.S. trademarks filed by HELEN C LOCKHART. The list below is generated based on trademark correspondent identification information provided to the United States Patent Office (USPTO). is a free search engine of publicly available government records. does not represent correspondent listed on this page.

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Goods and Services: Pharmaceutical for the treatment of urinary tract infections
DEAD (Circa: 1998)


Goods and Services: Compact, audio, and video discs featuring information relating to surgical procedures; prerec...
DEAD (Circa: 1997)