Granted Patent
Utility
US 4,306,558 · App. 06/119,784
Portable liquid collection device
Inventors:
Leonard D. Kurtz, Robert E. Bidwell
Patented Case
View Patent ↗
Granted: Dec 22, 1981
Filed: Feb 8, 1980
Inventors
Leonard D. Kurtz
Robert E. Bidwell
Assignee (at issue)
Bioresearch, Inc.
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.