Granted Patent
Utility
US 4,874,697 · App. 06/947,398
Novel Host e. coli and use thereof
Inventors:
Keijiro Sugimura, Shunjiro Sugimoto, Hounai Shirasawa
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Dec 29, 1986
Inventors
Keijiro Sugimura
Shunjiro Sugimoto
Hounai Shirasawa
Assignee (at issue)
SUNTORY HOLDINGS LIMITED
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.