Granted Patent
Utility
US 4,244,882 · App. 06/049,603
Process for continuous production of full esters of polyols
Inventors:
Hiroshi Isa, Kenji Karube, Junichi Nakayama
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Jun 18, 1979
Inventors
Hiroshi Isa
Kenji Karube
Junichi Nakayama
Assignees (at issue)
The Lion Fat & Oil Co., Ltd.
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.