Granted Patent
Utility
US 5,151,539 · App. 07/706,138
Formation of tetraarylpyrophosphate
Inventors:
Danielle A. Bright, Alan M. Aaronson
Patented Case
View Patent ↗
Granted: Sep 29, 1992
Filed: May 28, 1991
Inventors
Danielle A. Bright
Alan M. Aaronson
Assignee (at issue)
Akzo America 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.