Granted Patent
Utility
US 5,271,839 · App. 07/868,618
Patterned porous polymeric product and process
Inventors:
Wilson Moya, Paul Cook
Patented Case
View Patent ↗
Granted: Dec 21, 1993
Filed: Apr 14, 1992
Inventors
Wilson Moya
Paul Cook
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.