Granted Patent
Utility
US 5,919,608 · App. 08/960,162
Medium and process for generating acid using sensitizing dye and supersensitizer
Inventors:
Serajul Haque, John Marshall, Stephen J. Telfer
Patented Case
View Patent ↗
Granted: Jul 6, 1999
Filed: Oct 29, 1997
Inventors
Serajul Haque
John Marshall
Stephen J. Telfer
Assignee (at issue)
Polaroid 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.