Granted Patent
Utility
US 4,953,561 · App. 07/411,041
Urine testing module and method of collecting urine antigen
Inventor:
Raouf A. Guirguis
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Sep 22, 1989
Inventor
Raouf A. Guirguis
Assignee (at issue)
Cancer Diagnostics, 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.