Granted Patent
Utility
US 5,817,834 · App. 08/020,648
Process for the preparation of 2-aryl-5-(perfluoro-alkyl) pyrrole compounds from N-(perfluoroalkyl-methyl) arylimidoyl chloride compounds
Inventor:
Venkataraman Kameswaran
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: Feb 9, 1998
Inventor
Venkataraman Kameswaran
Assignee (at issue)
American Cyanamid 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.