Granted Patent
Utility
US 4,443,924 · App. 06/391,940
Method of and apparatus for detecting ends of successive fly strips connected by a slide fastener chain
Inventor:
Tatsuo Osaki
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Jun 24, 1982
Inventor
Tatsuo Osaki
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.