Granted Patent
Utility
US 4,464,281 · App. 06/518,248
Stabilized bleach-sensitive dyes in automatic dishwasher detergent compositions
Inventors:
Anthony A. Rapisarda, Edilia Camps, Herbert Bauer
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Jul 28, 1983
Inventors
Anthony A. Rapisarda
Edilia Camps
Herbert Bauer
Assignee (at issue)
Lever Brothers 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.