Granted Patent
Utility
US 5,160,380 · App. 07/701,156
Process for improved preparation of treatment gas in heat treatments
Inventors:
Peter Vocke, Thomas Mahlo, Reinhard Strigl
Patented Case
View Patent ↗
Granted: Nov 3, 1992
Filed: May 17, 1991
Inventors
Peter Vocke
Thomas Mahlo
Reinhard Strigl
Assignee (at issue)
Linde 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.