Granted Patent
Utility
US 5,778,980 · App. 08/654,984
Multicut casing window mill and method for forming a casing window
Inventors:
Laurier E. Comeau, Elis Vandenberg, Ian Gillis
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: May 29, 1996
Inventors
Laurier E. Comeau
Elis Vandenberg
Ian Gillis
Assignee (at issue)
Baroid Technology, 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.