Granted Patent
Utility
US 5,275,313 · App. 07/832,864
Chemical dispenser having an exterial connecting apparatus with a quick disconnect assembly
Inventors:
Steven J. Petrillo, Daryl Reigel
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Feb 7, 1992
Inventors
Steven J. Petrillo
Daryl Reigel
Assignee (at issue)
Ashland Oil, 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.