Granted Patent
Utility
US 4,468,621 · App. 06/341,175
Investigation of samples by N.M.R. techniques
Inventor:
Waldo S. Hinshaw
Patented Case
View Patent ↗
Granted: Aug 28, 1984
Filed: Jan 20, 1982
Inventor
Waldo S. Hinshaw
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.