Granted Patent
Utility
US 5,111,327 · App. 07/663,524
Substituted 3,4-polymethylenedioxythiophenes, and polymers and electro responsive devices made therefrom
Inventors:
Margaret Louise Blohm, James Edward Pickett, Paul Cornelius Vandort
Patented Case
View Patent ↗
Granted: May 5, 1992
Filed: Mar 4, 1991
Inventors
Margaret Louise Blohm
James Edward Pickett
Paul Cornelius Vandort
Assignee (at issue)
General Electric 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.