Granted Patent
Utility
US 4,298,528 · App. 06/135,381
Cyclohexyl-dioxane liquid crystalline compounds
Inventor:
Nicholas L. Sethofer
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Mar 28, 1980
Inventor
Nicholas L. Sethofer
Assignee (at issue)
Timex Corporation
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.