Granted Patent
Utility
US 5,938,701 · App. 08/948,467
Extraction device
Inventors:
Bruno Hiernard, Richard Farrar
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Oct 10, 1997
Inventors
Bruno Hiernard
Richard Farrar
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.