Granted Patent
Utility
US 3,966,853 · App. 05/509,257
Process for preparing prilled porous ammonium nitrate
Inventors:
Naoto Osako, Katsumi Kozima, Hiroshi Shimizu, Kazumi Kimura
Patented Case
View Patent ↗
Granted: Jun 29, 1976
Filed: Sep 25, 1974
Inventors
Naoto Osako
Katsumi Kozima
Hiroshi Shimizu
Kazumi Kimura
Assignee (at issue)
Mitsubishi Chemical 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.