The longest time between a patent being filed and granted in the week ending Aug. 13 in Carol Stream was 714 days, according to the United States Patent and Trademark Office.
The longest time between a patent being filed and granted in the week ending July 30 in Carol Stream was 596 days, according to the United States Patent and Trademark Office.
The longest time between a patent being filed and granted in September in Carol Stream was 965 days, according to the United States Patent and Trademark Office.