Granted Patent
Utility
US 4,586,602 · App. 06/692,896
Detonating cord transport system
Inventor:
David V. Levey, Sr., deceased
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jan 18, 1985
Inventor
David V. Levey, Sr., deceased
Assignee (at issue)
Pengo Industries, Inc.
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.