Granted Patent
Utility
US 5,249,729 · App. 07/998,588
Method for forming hook engaging part in thermal part of material for vertical suspension type surface treatment
Inventors:
Jingo Kuwana, Katsuyuki Nagata
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Dec 30, 1992
Inventors
Jingo Kuwana
Katsuyuki Nagata
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.