Granted Patent
Utility
US 5,345,381 · App. 07/964,381
Spiral scan computer tomography apparatus
Inventor:
Heinrich Wallschlaeger
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Oct 21, 1992
Inventor
Heinrich Wallschlaeger
Assignee (at issue)
Siemens Aktiengesellschaft
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.