Granted Patent
Utility
US 5,239,736 · App. 07/790,815
Method for making piezoelectric composites
Inventors:
John W. Sliwa, Sevig Ayter, John P. Mohr, III
Patented Case
View Patent ↗
Granted: Aug 31, 1993
Filed: Nov 12, 1991
Inventors
John W. Sliwa
Sevig Ayter
John P. Mohr, III
Assignee (at issue)
ACUSON
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.