Granted Patent
Utility
US 4,694,996 · App. 06/920,678
Multi cavity medication card crusher
Inventor:
Harold B. Siegel
Patented Case
View Patent ↗
Granted: Sep 22, 1987
Filed: Oct 20, 1986
Inventor
Harold B. Siegel
Assignee (at issue)
Siegel Family Revocable Trust
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.