Granted Patent
Utility
US 5,443,723 · App. 08/199,407
Membrane support and sealing apparatus
Inventors:
Ralph Stankowski, John Milcetich
Patented Case
View Patent ↗
Granted: Aug 22, 1995
Filed: Feb 22, 1994
Inventors
Ralph Stankowski
John Milcetich
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.