Granted Patent
Utility
US 5,879,270 · App. 08/920,223
Heart rate interval control for cardiopulmonary interval training
Inventors:
Dennis Copen Huish, Kirk Buhler
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Aug 25, 1997
Inventors
Dennis Copen Huish
Kirk Buhler
Assignee (at issue)
Unisen, 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.