Granted Patent
Utility
US 5,354,557 · App. 07/993,387
Osteogenic devices
Inventors:
Hermann Oppermann, Engin Ozkaynak, Thangavel Kuberasampath, David C. Rueger, Roy H. L. Pang
Patented Case
View Patent ↗
Granted: Oct 11, 1994
Filed: Dec 18, 1992
Inventors
Hermann Oppermann
Engin Ozkaynak
Thangavel Kuberasampath
David C. Rueger
Roy H. L. Pang
Assignee (at issue)
STRYKER 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.