Granted Patent
Utility
US 5,260,180 · App. 07/939,131
Photothermographic imaging media employing silver salts of tetrahydrocarbyl borate anions
Inventors:
Melville R. V. Sahyun, Ranjan C. Patel
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Sep 2, 1992
Inventors
Melville R. V. Sahyun
Ranjan C. Patel
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.