Granted Patent
Utility
US 4,225,423 · App. 06/037,361
Ova detector assembly
Inventor:
John Cotey
Patented Case
View Patent ↗
Granted: Sep 30, 1980
Filed: May 9, 1979
Inventor
John Cotey
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.