Granted Patent
Utility
US 5,336,071 · App. 08/063,429
Air gun for the production of non-woven fabric and non-woven fabric producing apparatus
Inventors:
Keiji Kobayashi, Akira Kaneko, Katsuya Hata, Yoshinori Kobayashi
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: May 19, 1993
Inventors
Keiji Kobayashi
Akira Kaneko
Katsuya Hata
Yoshinori Kobayashi
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.