Granted Patent
Utility
US 4,237,729 · App. 05/911,881
Doppler flow meter
Inventors:
Francis McLeod, Spencer Silverstein, Robert J. Kurtz
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Jun 2, 1978
Inventors
Francis McLeod
Spencer Silverstein
Robert J. Kurtz
Assignee (at issue)
Howmedica Inc.
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.