Granted Patent
Utility
US 4,617,557 · App. 06/669,815
Medication compliance aid for unit dose packaging
Inventor:
Richard Gordon
Patented Case
View Patent ↗
Granted: Oct 14, 1986
Filed: Nov 8, 1984
Inventor
Richard Gordon
Assignee (at issue)
National Patent Development 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.