Granted Patent
Utility
US 6,273,271 · App. 09/174,619
Surface modified porous membrane and process
Inventor:
Wison Moya
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Oct 19, 1998
Inventor
Wison Moya
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.