Granted Patent
Utility
US 4,903,641 · App. 07/316,415
Method and apparatus for extracting saturated steam in the synthesis of hydrogen chloride gas
Inventors:
Eduard Gohl, Johann Muller, Alois Spaderna
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Feb 27, 1989
Inventors
Eduard Gohl
Johann Muller
Alois Spaderna
Assignee (at issue)
Sigri GmbH
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.