Granted Patent
Utility
US 4,842,799 · App. 07/034,931
Method for injection molding end stops on slide fastener
Inventor:
Masahiro Kusayama
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Apr 6, 1987
Inventor
Masahiro Kusayama
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.