Granted Patent
Utility
US 4,264,304 · App. 06/067,960
Apparatus for fixing images consisting of powder toner on a recording carrier with the aid of solvent vapor
Inventor:
Gerhard Hausmann
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Aug 20, 1979
Inventor
Gerhard Hausmann
Assignee (at issue)
Siemens Aktiengesellschaft
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.