Granted Patent
Utility
US 5,484,651 · App. 08/253,277
Fluorine-containing polyolefin non-woven fabric and method of manufacturing the same
Inventors:
Koshi Sasaki, Hidehiko Ohara, Naoshi Imaki
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Jun 2, 1994
Inventors
Koshi Sasaki
Hidehiko Ohara
Naoshi Imaki
Assignee (at issue)
MITSUBISHI CHEMICAL CORPORATION
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.