Granted Patent
Utility
US 5,725,763 · App. 08/670,752
Vacuum filtration device sealable vacuum vent
Inventors:
Louis Bonhomme, Donald B. Rising
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Jun 24, 1996
Inventors
Louis Bonhomme
Donald B. Rising
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.