Granted Patent
Utility
US 4,512,951 · App. 06/520,146
Hydrogen peroxide liquid film sterilization method
Inventor:
Edward Koubek
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Aug 4, 1983
Inventor
Edward Koubek
Assignee (at issue)
American Sterilizer Company
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.