Holding that third-party evidence should not be disregarded in evaluating the strength of a mark for purposes of determining the likelihood of confusion
Finding a “real interest” in a mark's registration can be shown “without proprietary rights in the mark or without asserting that it has a right or has an interest in using the alleged mark”
Holding that advertising firm had used THE NOW GENERATION as a mark for its promotional services based on letterhead naming itself as the "creators, producers and suppliers of THE NOW GENERATION sales promotion services" as well as "postcard and magazine advertising specimens to the same effect"
Stating that "[a]s to strength of a mark . . . [third-party] registration evidence may not be given any weight . . . [because they are] not evidence of what happens in the market place"