Granted Patent
Utility
US 5,736,056 · App. 08/783,683
Method for enhancing biocidal activity
Inventors:
J. Barry Wright, Daniel L. Michalopoulos
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Jan 15, 1997
Inventors
J. Barry Wright
Daniel L. Michalopoulos
Assignee (at issue)
Betzdearborn, 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.