Granted Patent
Utility
US 6,254,544 · App. 09/575,822
Heart-function monitor apparatus
Inventor:
Kazuko Hayashi
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: May 22, 2000
Inventor
Kazuko Hayashi
Assignee (at issue)
Colin 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.