Granted Patent
Utility
US 5,397,632 · App. 08/061,368
Nonwoven laminated composite article capable or readily undergoing pleating to form a stable pleated depth gaseous filtration medium
Inventors:
William F. Murphy, Randy E. Powell
Patented Case
View Patent ↗
Granted: Mar 14, 1995
Filed: May 14, 1993
Inventors
William F. Murphy
Randy E. Powell
Assignee (at issue)
Reemay, 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.