I've not done one myself but have helped someone get his own Trademark, Basically it was his company name that he wanted to Protect, He Had a product which he wanted to call The ********* Ramp
The stars are what his company was called. I got him to register direct with the Intellectual property office http://www.ipo.gov.uk/tm.htm
Never go with one of those agents you see on the net, as you'll always pay over the odds for something you can do yourself
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