Granted Patent
Utility
US 5,175,437 · App. 07/806,716
Ultraviolet light apparatus
Inventor:
Alexander Waluszko
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Dec 12, 1991
Inventor
Alexander Waluszko
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.