Granted Patent
Utility
US 5,346,593 · App. 08/079,063
Intermediate reboiler for a methanol plant
Inventors:
Edward Jay Cialkowski, Thomas P. Ognisty
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Jun 18, 1993
Inventors
Edward Jay Cialkowski
Thomas P. Ognisty
Assignee (at issue)
The M.W. Kellogg 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.