Granted Patent
Utility
US 6,117,839 · App. 08/763,458
Bone stimulating factor
Inventor:
Cherk Shing Tam
Patented Case
View Patent ↗
Granted: Sep 12, 2000
Filed: Dec 11, 1996
Inventor
Cherk Shing Tam
Assignee (at issue)
Gensci Regeneration Science, 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.