Granted Patent
Utility
US 5,319,133 · App. 07/997,376
Isocyanates and their preparation using hypochlorous acid
Inventors:
Robert J. Raynor, Thomas A. Knowles
Patented Case
View Patent ↗
Granted: Jun 7, 1994
Filed: Dec 28, 1992
Inventors
Robert J. Raynor
Thomas A. Knowles
Assignee (at issue)
Olin 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.