Granted Patent
Utility
US 5,129,900 · App. 07/557,587
Spinal column retaining method and apparatus
Inventors:
Marc A. Asher, Walter E. Strippgen, Charles F. Heinig, William L. Carson
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Jul 24, 1990
Inventors
Marc A. Asher
Walter E. Strippgen
Charles F. Heinig
William L. Carson
Assignee (at issue)
AcroMed 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.