Granted Patent
Utility
US 4,917,815 · App. 07/205,133
Stable aqueous aromatic percarboxylic acid solution
Inventors:
Wolfgang Beilfuss, Karl-Heinz Diehl
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: Jun 10, 1988
Inventors
Wolfgang Beilfuss
Karl-Heinz Diehl
Assignee (at issue)
Sterling Drug, 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.