Granted Patent
Utility
US 5,874,700 · App. 08/812,326
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Inventor:
Gerhard Hochgesang
Patented Case
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Granted: Feb 23, 1999
Filed: Mar 5, 1997
Inventor
Gerhard Hochgesang
Assignee (at issue)
Preh-Werke GmbH & Co. KG
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.