Granted Patent
Utility
US 4,479,290 · App. 06/376,143
Space forming and stop fixing apparatus for fastener chains
Inventor:
Tatsuo Osaki
Patented Case
View Patent ↗
Granted: Oct 30, 1984
Filed: May 7, 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.