Granted Patent
Utility
US 4,356,104 · App. 06/277,796
4-Substituted phenyl 4-(5n-alkyl-1,3-dioxan-2-yl)benzoates
Inventor:
Ying Yen Hsu
Patented Case
View Patent ↗
Granted: Oct 26, 1982
Filed: Jun 29, 1981
Inventor
Ying Yen Hsu
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.