Granted Patent
Utility
US 4,554,236 · App. 06/543,566
Amino acid stabilizers for water soluble diazonium compound condensation products
Inventors:
Trisha Bentley, John E. Walls, Major S. Dhillon
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Oct 19, 1983
Inventors
Trisha Bentley
John E. Walls
Major S. Dhillon
Assignee (at issue)
American Hoechst 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.