Granted Patent
Utility
US 5,113,572 · App. 07/599,671
Machine and method for automatically assembling buttons
Inventor:
Gary M. Trocola
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Oct 17, 1990
Inventor
Gary M. Trocola
Assignee (at issue)
The Ball and Socket Manufacturing Company of Delaware, 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.