Granted Patent
Utility
US 4,121,896 · App. 05/670,031
Apparatus for the production of contact lenses
Inventor:
Thomas H. Shepherd
Patented Case
View Patent ↗
Granted: Oct 24, 1978
Filed: Mar 24, 1976
Inventor
Thomas H. Shepherd
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.