Granted Patent
Utility
US 5,219,527 · App. 07/758,291
Sensor element and method for making the same
Inventors:
Henry K. Hui, Charles Bankert
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Aug 28, 1991
Inventors
Henry K. Hui
Charles Bankert
Assignee (at issue)
Puritan-Bennett 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.