Granted Patent
Utility
US 6,009,947 · App. 08/617,736
Casing conveyed perforator
Inventors:
Dennis R. Wilson, Malak E. Yunan, Wilber R. Moyer, Larry K. Moran
Patented Case
View Patent ↗
Granted: Jan 4, 2000
Filed: Mar 18, 1996
Inventors
Dennis R. Wilson
Malak E. Yunan
Wilber R. Moyer
Larry K. Moran
Assignee (at issue)
Conoco 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.