Granted Patent
Utility
US 5,126,189 · App. 07/040,935
Hydrophobic microporous membrane
Inventors:
Gerald Tanny, Yitzchak Keningsberg, Ehud Shchori
Patented Case
View Patent ↗
Granted: Jun 30, 1992
Filed: Apr 21, 1987
Inventors
Gerald Tanny
Yitzchak Keningsberg
Ehud Shchori
Assignee (at issue)
Gelman Sciences
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.