Granted Patent
Utility
US 6,126,826 · App. 08/906,074
PVDF microporous membrane and method
Inventors:
Manuel M. Pacheco, John F. Pacheco
Patented Case
View Patent ↗
Granted: Oct 3, 2000
Filed: Aug 5, 1997
Inventors
Manuel M. Pacheco
John F. Pacheco
Assignee (at issue)
Whatman GmbH
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.