Granted Patent
Utility
US 5,344,820 · App. 07/879,421
Infection protectant
Inventors:
Shunichi Dosako, Hiroko Kusano, Eiki Deya, Tadashi Idota
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: May 7, 1992
Inventors
Shunichi Dosako
Hiroko Kusano
Eiki Deya
Tadashi Idota
Assignee (at issue)
SNOW BRAND MILK PRODUCTS 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.