Granted Patent
Utility
US 4,832,040 · App. 07/076,455
Non-bunching cinch ring for self-applied blood pressure cuff
Inventor:
Gray E. Ruff
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Jul 22, 1987
Inventor
Gray E. Ruff
Assignee (at issue)
SpaceLabs, 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.