20210207014500.0 Official gazette of the United States Patent and Trademark Office. Patents Official gazette of the United States Patent and Trademark Office. 0098-1133 Official gazette of the United States Patent and Trademark Office. Patents Official gazette of the United States Patent and Trademark Office. 0098-1133 0098-1133 0098-1133 http://purl.access.gpo.gov/GPO/LPS21402 http://www.uspto.gov/web/patents/patog/ 0098-1133 District of Columbia