This post was last published on July 18th, 2014.   Today we will take a look at two patentability cases with a very similar premise, the premise being if the public use of an invention bars its patentability. What these two cases have in common is only the premise, and with a little scrutiny, we will see how contrasting the cases actually were. 1. Egbert v. Lippmann, 104 U.S. 333 (1881) In the year 1855, Samuel Barnes, designed corset springs,…