Granted Patent
Utility
US 4,993,422 · App. 07/287,715
Apparatus for measuring blood pressure
Inventors:
Edward H. Hon, Edward D. Hon
Patented Case
View Patent ↗
Granted: Feb 19, 1991
Filed: Dec 19, 1988
Inventors
Edward H. Hon
Edward D. Hon
Assignee (at issue)
The Hon Group
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.