Granted Patent
Utility
US 5,127,780 · App. 07/725,125
Expandable holding device using a fusible alloy
Inventor:
Ted R. Massa
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: Jul 3, 1991
Inventor
Ted R. Massa
Assignee (at issue)
KENNAMETAL 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.