Granted Patent
Utility
US 4,806,263 · App. 07/046,748
Fungicidal and algicidal detergent compositions
Inventors:
Amy Z. Leathers, S. Thomas Greer
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: May 7, 1987
Inventors
Amy Z. Leathers
S. Thomas Greer
Assignee (at issue)
PPG Industries, Inc.
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.