Granted Patent
Utility
US 5,306,352 · App. 08/007,809
Peroxide disinfection method
Inventors:
Paul Clement Nicolson, Kenneth R. Seamons, Fu-Pao Tsao, Larry A. Alvord, Earl C. McCraw, Jr.
Patented Case
View Patent ↗
Granted: Apr 26, 1994
Filed: Jan 22, 1993
Inventors
Paul Clement Nicolson
Kenneth R. Seamons
Fu-Pao Tsao
Larry A. Alvord
Earl C. McCraw, Jr.
Assignee (at issue)
Ciba-Geigy
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.