Granted Patent
Utility
US 5,714,712 · App. 08/738,173
Explosive initiation system
Inventors:
David W. Ewick, Daniel P. Sutula, Jr., Brendan Welch, Anthony Sendek, Willie B. Eicke, Jr.
Patented Case
View Patent ↗
Granted: Feb 3, 1998
Filed: Oct 25, 1996
Inventors
David W. Ewick
Daniel P. Sutula, Jr.
Brendan Welch
Anthony Sendek
Willie B. Eicke, Jr.
Assignee (at issue)
The Ensign-Bickford Company
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.