International Diagnostic Technology, Inc., Appellant/cross-Appellee v. Miles Laboratories, Inc., Appellee/cross-Appellant

JACK R. MILLER, Circuit Judge.

These are consolidated appeals from the U.S. Patent and Trademark Office Trademark Trial and Appeal Board (“board”), opinion reported at 220 USPQ 438 (TTAB 1983). In Docket No. 84,746, International Diagnostic Technology, Inc. (“International”) contests the board’s decision sustaining the opposition of Miles Laboratories, Inc. (“Miles”) and its holding that International’s mark STIQ, for “immuno-assay equipment for medical laboratories, namely, a sampler to be used in conjunction with test tubes,” so resembles the marks of Miles, consisting of the letters STIX as…