Granted Patent
Utility
US 5,194,176 · App. 07/679,366
Peroxygen laundry bleach
Inventors:
William C. Copenhafer, Basil A. Guiliano, William A. Hills, Charles V. Juekle, Stephen Tomko
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Apr 2, 1991
Inventors
William C. Copenhafer
Basil A. Guiliano
William A. Hills
Charles V. Juekle
Stephen Tomko
Assignee (at issue)
FMC CORPORATION
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.