E. I. Du Pont De Nemours & Co. v. Celanese Corp. of America

The subject matter of the appeal nowise involves the issue that a proper license agreement is valid and does not indicate abandonment on the part of the owner, since appellant from the outset of the proceedings heretofore begun in the Patent Office has consistently prosecuted its petition upon the basic principle that where the mark is used in no such manner as to cause the mark to lose its significance as an indication of origin and to deceive the public, the owner thereof may authorize others, including subsidiaries and those who are completely independent, to legitimately use the mark on…