Granted Patent
Utility
US 4,504,462 · App. 06/387,136
Process for making a lyophilized product for use in skeletal imaging
Inventors:
Barry F. Van Duzee, Charles Raymond Degenhardt
Patented Case
View Patent ↗
Granted: Mar 12, 1985
Filed: Jun 10, 1982
Inventors
Barry F. Van Duzee
Charles Raymond Degenhardt
Assignee (at issue)
MALLINCKRODT LLC
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.