Your marks need to protected (words phrases, symbols, etc). You need to file a trademark application with the US Patent & Trade Mark office. After the application is filed, others in the market will file a complaint against your usage of a preexisting mark, if applicable. If other have been using the same mark before you then you will have to litigate in order to stake your claim and protect your investment. I recommend that you hire a patent attorney to asisst you. Look up attorneys in your area for a referral. This is not something you want to take on yourself if you are unfamiliar with this code. If you are in Michigan then i can recommend an excellent attorney for you:
Philip R. Warn - P38512
Warn Hoffmann Miller & LaLone PC
691 N Squirrel Rd Ste 140
Auburn Hills, MI 48326
Phone: (248) 364-4300
Fax: (248) 364-4285
E-mail:
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Web:
www.warnhoffmann.com
Go to this link for more info.
http://www.uspto.gov/