UNIX trademark

[James M. Scardelis]

The legal definition of a trademark is such that it is a mark that
describes a particular type or brand of item. The language specified in
the article is the same language used by the Patent and Trademark office.
Xerox is in constant danger of losing their trademark because people have
been referring to such things as "Xeroxing a report" or using the Xerox machine
in general, rather than referring to the Xerox brand photocopy machine.