Granted Patent
Utility
US 4,624,796 · App. 06/804,574
Piezoelectric filler and flexible piezoelectric composites
Inventors:
Jayne R. Giniewicz, Ahmad Safari, Robert E. Newnham, Leslie E. Cross
Patented Case
View Patent ↗
Granted: Nov 25, 1986
Filed: Dec 4, 1985
Inventors
Jayne R. Giniewicz
Ahmad Safari
Robert E. Newnham
Leslie E. Cross
Assignee (at issue)
Celanese 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.