Granted Patent
Utility
US 5,309,283 · App. 08/040,109
Hybrid, color-corrected, projection TV lens system
Inventor:
Melvyn H. Kreitzer
Patented Case
View Patent ↗
Granted: May 3, 1994
Filed: Mar 30, 1993
Inventor
Melvyn H. Kreitzer
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.