Granted Patent
Utility
US 4,789,663 · App. 06/752,447
Methods of bone repair using collagen
Inventors:
Donald G. Wallace, Thomas L. Smestad, John M. McPherson, Karl A. Piez, Saeid Seyedin, Rosa Armstrong
Patented Case
View Patent ↗
Granted: Dec 6, 1988
Filed: Jul 5, 1985
Inventors
Donald G. Wallace
Thomas L. Smestad
John M. McPherson
Karl A. Piez
Saeid Seyedin
Rosa Armstrong
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.