Granted Patent
Utility
US 5,873,967 · App. 08/823,255
Method for making a vaccum filter device
Inventors:
Phillip Clark, Brian Foley, Aldo M. Pitt
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Mar 24, 1997
Inventors
Phillip Clark
Brian Foley
Aldo M. Pitt
Assignee (at issue)
Millipore Corporation
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.