Granted Patent
Utility
US 4,564,007 · App. 06/543,969
Orthopaedic external fixation devices
Inventors:
Richard R. H. Coombs, Mekki M. El-Saba
Patented Case
View Patent ↗
Granted: Jan 14, 1986
Filed: Oct 20, 1983
Inventors
Richard R. H. Coombs
Mekki M. El-Saba
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.