Granted Patent
Utility
US 4,853,101 · App. 07/055,661
Porous separator comprising inorganic/polymer composite fiber and method of making same
Inventors:
Louis W. Hruska, Carl W. Brown, Jr.
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: May 29, 1987
Inventors
Louis W. Hruska
Carl W. Brown, Jr.
Assignee (at issue)
Eltech Systems 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.