Here are three recently decided Section 2(d) cases: one
opposition and two appeals. See if you can "guess" how
they came out. [Answer in first comment].

In re I.L.L.A. S.P.A., Serial No. (October
30, 2018) [not precedential] (Opinion by Judge Robert H. Coggins)
[Refusal to register OLLIA-TECH for
"Non-stick coatings for pans, cookware, baking trays, small
electric kitchen apparatus and utensils; and Frying pans; skillets;
earthenware saucepans; saucepans; pots for cooking; household
utensils, namely, graters; kitchen utensils, namely, splatter
screens," in view of the registered mark OLIA
DESIGN for "glass wares, namely, decorative, and
handcraft art objects of glass; beverage glassware; mugs; cups and
mugs" [DESIGN disclaimed] Applicant maintained that the marks
are pronounced differently and have different connotations
("tech" versus "design."]