Granted Patent
Utility
US 4,438,288 · App. 06/496,146
Dehydrogenation of hydrocarbons with a halogen contacting step
Inventors:
Tamotsu Imai, Chi-Wen Hung
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: May 19, 1983
Inventors
Tamotsu Imai
Chi-Wen Hung
Assignee (at issue)
UOP LLC
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.