Granted Patent
Utility
US 5,314,912 · App. 08/007,371
Sliding property improving agent and process for making the same
Inventors:
Shouichi Yoshitani, Hiroki Mizutani, Nobuyoshi Suzuki, Kazumine Ohara, Yasushi Ohyanagi, Isamu Sekiguchi
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Jan 21, 1993
Inventors
Shouichi Yoshitani
Hiroki Mizutani
Nobuyoshi Suzuki
Kazumine Ohara
Yasushi Ohyanagi
Isamu Sekiguchi
Assignee (at issue)
Nippon Oil & Fats Co. 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.