Granted Patent
Utility
US 5,326,009 · App. 08/037,530
Air nozzle for use in production of nonwoven fabric
Inventors:
Yoshinori Kobayashi, Naoyuki Tamura, Haruo Sasako
Patented Case
View Patent ↗
Granted: Jul 5, 1994
Filed: Mar 26, 1993
Inventors
Yoshinori Kobayashi
Naoyuki Tamura
Haruo Sasako
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.