Granted Patent
Utility
US 4,849,452 · App. 06/808,014
Nephro-urological medicament
Inventors:
Hans-Joachim Dulce, Werner Stumpf
Patented Case
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Granted: Jul 18, 1989
Filed: Dec 11, 1985
Inventors
Hans-Joachim Dulce
Werner Stumpf
Assignee (at issue)
Dr. Madaus GmbH & Co
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.