Granted Patent
Utility
US 4,976,014 · App. 07/424,993
Automatic lock slider for slide fastener
Inventors:
Shunji Akashi, Kiyoshi Oda
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Oct 23, 1989
Inventors
Shunji Akashi
Kiyoshi Oda
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.