Granted Patent
Utility
US 4,803,400 · App. 07/010,078
Pre-water-based suspension phosphor treatment process
Inventors:
Thomas E. Peters, Roger B. Hunt, Jr.
Patented Case
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Granted: Feb 7, 1989
Filed: Feb 2, 1987
Inventors
Thomas E. Peters
Roger B. Hunt, Jr.
Assignee (at issue)
GTE Laboratories Incorporated
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.