Granted Patent
Utility
US 4,853,288 · App. 07/166,107
Stabilized red phosphorus and process for making it
Inventors:
Horst Staendeke, Ursus Thummler, Wilhelm Adam
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Mar 10, 1988
Inventors
Horst Staendeke
Ursus Thummler
Wilhelm Adam
Assignee (at issue)
Hoechst GmbH
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.