Granted Patent
Utility
US 4,303,339 · App. 06/154,727
Graphite tube assembly
Inventors:
Horst Glaser, Rolf Tamm
Patented Case
View Patent ↗
Granted: Dec 1, 1981
Filed: May 29, 1980
Inventors
Horst Glaser
Rolf Tamm
Assignee (at issue)
Bodenseewerk Perkin-Elmer 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.