This page provides information on the types of patents and types of patent applications, and the examination process. Patent for an improved paper bag machine, which rapidly converts continuously moving paper into bags.On the 17th of March, 1863, another patent was issued to Charles H. Morgan for an improvement in paper-bag machines. The purpose of this guide is to provide you with basic information about filing a utility patent application with the USPTO. AudiencesBookmark this section. Check out our Resources for Educators Site! White paper bags made of recycled material tend to be flimsy due to the amount of bleach used, so Apple's come up with a solution. "The following disclosure relates to a bag, such as a retail shopping bag," Apple writes in its patent application. We will happily send you a sample of both bags to compare! BROWNSVILLE, Texas The secret is out of the bag for Duro.