Granted Patent
Utility
US 5,648,556 · App. 08/339,138
Synthesis of bis(2,2-dinitropropyl)acetal (BDNPA)
Inventors:
R. Scott Hamilton, Robert B. Wardle
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Nov 14, 1994
Inventors
R. Scott Hamilton
Robert B. Wardle
Assignee (at issue)
Thiokol 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.