Granted Patent
Utility
US 6,183,997 · App. 08/822,774
Polymerase enhancing factor (PEF) extracts PEF protein complexes isolated PEF proteins and methods for purifying and identifying same
Inventor:
Holly Hogrefe
Patented Case
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Granted: Feb 6, 2001
Filed: Mar 21, 1997
Inventor
Holly Hogrefe
Assignee (at issue)
STRATAGEN
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.