Granted Patent
Utility
US 4,009,712 · App. 05/602,725
Fluted hip nail implant system for orthopaedic surgery
Inventors:
Albert H. Burstein, Kingsbury G. Heiple
Patented Case
View Patent ↗
Granted: Mar 1, 1977
Filed: Aug 7, 1975
Inventors
Albert H. Burstein
Kingsbury G. Heiple
Assignee (at issue)
The Sampson 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.