Granted Patent
Utility
US 5,653,685 · App. 08/412,135
Method of providing circulation via lung expansion and deflation
Inventors:
Ronald M. Klatz, Robert M. Goldman
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Mar 28, 1995
Inventors
Ronald M. Klatz
Robert M. Goldman
Assignee (at issue)
LRT, Inc.
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.