Granted Patent
Utility
US 4,685,774 · App. 06/820,553
Projection lens
Inventor:
Jacob Moskovich
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Jan 17, 1986
Inventor
Jacob Moskovich
Assignee (at issue)
U.S. Precision Lens Incorporated
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.