Granted Patent
Utility
US 4,888,366 · App. 07/100,990
Inductive collagen-based bone repair preparations
Inventors:
George H. Chu, Ranga Nathan, Saeid Seyedin
Patented Case
View Patent ↗
Granted: Dec 19, 1989
Filed: Sep 25, 1987
Inventors
George H. Chu
Ranga Nathan
Saeid Seyedin
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.