Granted Patent
Utility
US 5,480,643 · App. 08/065,289
Stable antimicrobial dialdehyde composition and methods of use
Inventors:
Daniel J. Donovan, David D. McSherry, Dale L. Fredell
Patented Case
View Patent ↗
Granted: Jan 2, 1996
Filed: Jul 6, 1993
Inventors
Daniel J. Donovan
David D. McSherry
Dale L. Fredell
Assignee (at issue)
ECOLAB 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.