William John Stoffel Esq.

Trademark links

USPTO - Main trademark page - status
http://www.uspto.gov/main/trademarks.htm

USPTO- Trademarks - where do I start
http://www.uspto.gov/web/trademarks/workflow/start.htm  

Basic Facts About Trademarks
http://www.uspto.gov/web/offices/tac/doc/basic/

Trademark Electronic Search System (TESS)
 http://tess2.uspto.gov/bin/gate.exe?f=tess&state=b58035.1.1

USPTO trademark assignment information
http://assignments.uspto.gov/assignments