Granted Patent
Utility
US 4,141,941 · App. 05/835,114
Contact lens casting method
Inventor:
Edward A. Travnicek
Patented Case
View Patent ↗
Granted: Feb 27, 1979
Filed: Sep 21, 1977
Inventor
Edward A. Travnicek
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.