Granted Patent
Utility
US 4,892,925 · App. 07/300,460
Process for preparing phenolic hydroxyl-containing compounds from 2,6-dibromo-3,5-dialkyl-4-hydroxybenzyl ethers
Inventors:
Chun-Shan Wang, Abel Mendoza, David B. Fritz
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Jan 23, 1989
Inventors
Chun-Shan Wang
Abel Mendoza
David B. Fritz
Assignee (at issue)
THE DOW CHEMICAL COMPANY
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.