Granted Patent
Utility
US 4,696,745 · App. 06/849,764
Separating agent with fluoroalkyl group
Inventors:
Takaharu Itagaki, Hiroshi Kusano, Eiji Miyata, Hirohisa Kubota
Patented Case
View Patent ↗
Granted: Sep 29, 1987
Filed: Apr 9, 1986
Inventors
Takaharu Itagaki
Hiroshi Kusano
Eiji Miyata
Hirohisa Kubota
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.