Granted Patent
Utility
US 4,540,534 · App. 06/540,867
Apparatus and method for injection molding lenses
Inventor:
Clark L. Grendol
Patented Case
View Patent ↗
Granted: Sep 10, 1985
Filed: Oct 11, 1983
Inventor
Clark L. Grendol
Assignee (at issue)
American Optical Corporation
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.