Granted Patent
Utility
US 4,395,750 · App. 06/231,159
Operating room light
Inventors:
Hans Scheidemann, Alois Rieth, Bruno Sebralla, Walter Wohlfart
Patented Case
View Patent ↗
Granted: Jul 26, 1983
Filed: Feb 3, 1981
Inventors
Hans Scheidemann
Alois Rieth
Bruno Sebralla
Walter Wohlfart
Assignee (at issue)
W. C. Heraeus 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.