Granted Patent
Utility
US 5,012,573 · App. 07/532,654
Button applicator
Inventor:
Kazuyoshi Ito
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Jun 4, 1990
Inventor
Kazuyoshi Ito
Assignee (at issue)
Yoshida Kogyo K.K.
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.