Granted Patent
Utility
US 4,563,350 · App. 06/664,158
Inductive collagen based bone repair preparations
Inventors:
Ranga Nathan, Saied Seyedin, Karl A. Piez, Hanne Bentz
Patented Case
View Patent ↗
Granted: Jan 7, 1986
Filed: Oct 24, 1984
Inventors
Ranga Nathan
Saied Seyedin
Karl A. Piez
Hanne Bentz
Assignee (at issue)
COLLAGEN CORPORATION
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.