Granted Patent
Utility
US 5,877,359 · App. 08/013,839
Uncatalyzed liquid phase fluorination of 1230ZA
Inventor:
Maher Y. Elsheikh
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Jan 27, 1998
Inventor
Maher Y. Elsheikh
Assignee (at issue)
Elf Atochem North 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.