Granted Patent
Utility
US 6,028,433 · App. 08/855,911
Portable fluid screening device and method
Inventors:
Margaret A. Cheiky-Zelina, Wayne A. Bush
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: May 14, 1997
Inventors
Margaret A. Cheiky-Zelina
Wayne A. Bush
Assignee (at issue)
Reid Asset Management Company
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.