Granted Patent
Utility
US 5,658,463 · App. 08/475,965
Process for extraction of analytes from solid and materials and filtration
Inventor:
Fernando Manuel Rubio
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jun 7, 1995
Inventor
Fernando Manuel Rubio
Assignee (at issue)
Strategic 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.