Granted Patent
Utility
US 4,534,048 · App. 06/455,095
Methods of increasing anterior layer thickness of continuous dental images obtained through rotational panoramic radiography
Inventors:
Ulf Welander, William D. McDavid, Charles R. Morris
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Jan 3, 1983
Inventors
Ulf Welander
William D. McDavid
Charles R. Morris
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.