Granted Patent
Utility
US 4,871,101 · App. 07/031,469
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Inventors:
Rosa Bunz, Christine Dzionara, Karl Tompe
Patented Case
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Granted: Oct 3, 1989
Filed: Feb 24, 1987
Inventors
Rosa Bunz
Christine Dzionara
Karl Tompe
Assignee (at issue)
Maschinenvertrieb Kohlbrat & Bunz Gesellschaft mbH
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.