Granted Patent
Utility
US 5,069,148 · App. 07/578,669
Trouser-fly piece serging apparatus
Inventors:
Kiichirou Ishikawa, Yasuhiro Fukumoto, Chet Dudek
Patented Case
View Patent ↗
Granted: Dec 3, 1991
Filed: Sep 7, 1990
Inventors
Kiichirou Ishikawa
Yasuhiro Fukumoto
Chet Dudek
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.