Case T-22/13 and T-23/13: Judgment of the General Court of 21 May 2015 — Senz Technologies BV v OHIM — Impliva (Umbrellas) (Community design — Invalidity proceedings — Registered Community design representing umbrellas — Grounds for invalidity — Disclosure of earlier design — American patent as earlier design — Circles specialised in the sector concerned — Informed user — Degree of attention of an informed user — Fashion accessories — Degree of freedom of the designer — Individual character — Different overall impression — Invalidity proceedings)