Granted Patent
Utility
US 4,496,405 · App. 06/530,465
Explosive
Inventor:
Michael Cechanski
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Sep 8, 1983
Inventor
Michael Cechanski
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.