Granted Patent
Utility
US 4,840,804 · App. 07/180,479
Method of dehydrating foods in melted erythritol
Inventor:
Tsutomu Kondou
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Apr 12, 1988
Inventor
Tsutomu Kondou
Assignees (at issue)
Mitsubishi Chemical Industries, Ltd.
Nikken Chemicals 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.