Granted Patent
Utility
US 5,003,879 · App. 07/432,079
Delay detonator
Inventor:
Ronald G. Jones
Patented Case
View Patent ↗
Granted: Apr 2, 1991
Filed: Nov 6, 1989
Inventor
Ronald G. Jones
Assignee (at issue)
Propellex 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.