Granted Patent
Utility
US 4,859,360 · App. 06/842,631
Cholesteric liquid crystal formulations and time/temperature monitoring means
Inventors:
Fred K. Suzuki, Sharon M. Mead, Noble H. Yoshida, Robert H. Dobberstein
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Mar 21, 1986
Inventors
Fred K. Suzuki
Sharon M. Mead
Noble H. Yoshida
Robert H. Dobberstein
Assignee (at issue)
Biosynergy, Inc.
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.