Granted Patent
Utility
US 5,464,249 · App. 08/336,826
Generant loaded filter assembly and method for its use
Inventors:
Donald R. Lauritzen, Joseph L. Ralston
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: Nov 9, 1994
Inventors
Donald R. Lauritzen
Joseph L. Ralston
Assignee (at issue)
Morton International, 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.