Granted Patent
Utility
US 5,747,722 · App. 08/548,815
Detonators having multiple-line input leads
Inventors:
Ernest L. Gladden, Ronald M. Dufrane
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Jan 11, 1996
Inventors
Ernest L. Gladden
Ronald M. Dufrane
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.