Granted Patent
Utility
US 4,554,436 · App. 06/589,821
Electric heater for a rotating sample vessel container in a sampling device for gas chromatography
Inventors:
Wolfgang Chlosta, Wolfgang Riegger
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Mar 15, 1984
Inventors
Wolfgang Chlosta
Wolfgang Riegger
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.