Granted Patent
Utility
US 6,423,237 · App. 08/963,873
Method and apparatus for manually separating particulate matter from a liquid specimen
Inventor:
Raouf A. Guirguis
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Nov 4, 1997
Inventor
Raouf A. Guirguis
Assignee (at issue)
LaMina, 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.