Granted Patent
Utility
US 5,773,170 · App. 08/627,825
UV-absorbing media bleachable by IR-radiation
Inventors:
Ranjan C. Patel, Robert James Domett Nairne
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Apr 2, 1996
Inventors
Ranjan C. Patel
Robert James Domett Nairne
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.