Granted Patent
Utility
US 5,494,152 · App. 08/096,905
Detonator packaging system
Inventors:
Brian R. Sobczak, J. Donaldson Thomas
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Jul 23, 1993
Inventors
Brian R. Sobczak
J. Donaldson Thomas
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.