Granted Patent
Utility
US 4,542,243 · App. 06/540,017
Process for producing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpropyl ethers
Inventors:
Mitsumasa Umemoto, Tamotsu Asano, Teruyuki Nagata, Satoshi Numata
Patented Case
View Patent ↗
Granted: Sep 17, 1985
Filed: Oct 7, 1983
Inventors
Mitsumasa Umemoto
Tamotsu Asano
Teruyuki Nagata
Satoshi Numata
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.