Granted Patent
Utility
US 4,640,833 · App. 06/710,931
Use of perfluorobromoalkyl ethers as X-ray contrast agents
Inventors:
Christ Tamborski, Leland C. Clark, Jr.
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Mar 11, 1985
Inventors
Christ Tamborski
Leland C. Clark, Jr.
Assignees (at issue)
Adamantech, Inc.
Childrens Hospital Research Foundation
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.