Trade-mark. Any symbol, mark, name or other characteristic or arbitrary indication adopted or
used, as by a manufacturer or merchant, to designate the goods he manufactures or sells and to
distinguish them from the goods of competitors.  The word "trade-mark" can be used without
registering it and such use does not prevent or invalidate registration subsequently. A trade-mark
is not in this respect like a copyright or a patent right. No one has the exclusive right to publish his
own works or to manufacture his own inventions unless he establishes his right under certain acts
of Congress.