Granted Patent
Utility
US 5,211,554 · App. 07/914,412
Detonation arrestor with stacked plates
Inventor:
Robert K. Rajewski
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Jul 17, 1992
Inventor
Robert K. Rajewski
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.