Trademarks and service marks are also business and service type dependent. When you apply for a trademark or service mark, you send in copies of the name image, and a complete description of what business or service it pertains to. This gives the name relevance.
In theory, I could start a gaming company called Sears Gaming, even though Sears is a registered trademark of the famous store, Sears, Roebuck and Co. If I were to use the same font and color, they could come after me for infringement or trying to get sales off their notoriety, but since my business would have nothing to do with a department store, it would no be a problem.
Xplosys is a registered trade mark of Xplosys, Corp., and Metro SBS is a registered service mark of Xplosys, Corp. If someone were to open a Small Business Services company using the name Metro SBS, I would have cause to sue them to change the name. If they opened a Steak, Bread and Salad restaurant using Metro SBS, they would have no problem as long as it didn't look like my logo.
That's just an example, but you get the idea.
I think it was 60.00 US each for my marks, but that is for 10 years (I think).
Best.
EDIT: Remember that registering a mark does not prevent others from using it. It only creates documented evidence of date of use, so you can say "I had it first" if you need to argue the point in court.
I'm sorry, my answers are limited. You must ask the right question.
