Granted Patent
Utility
US 6,013,846 · App. 09/035,696
Azeotrope of HF and 1233zd
Inventors:
John A. Wismer, Michael Sheppard Bolmer, Bin Chen
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Mar 5, 1998
Inventors
John A. Wismer
Michael Sheppard Bolmer
Bin Chen
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.