Granted Patent
Utility
US 4,127,776 · App. 05/828,695
X-ray generator self centering tube shield
Inventor:
Richard A. Pickel
Patented Case
View Patent ↗
Granted: Nov 28, 1978
Filed: Aug 29, 1977
Inventor
Richard A. Pickel
Assignee (at issue)
Pennwalt 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.