Granted Patent
Utility
US 6,679,335 · App. 10/170,414
Method for preparing casing for use in a wellbore
Inventors:
Maurice William Slack, Trent Michael Victor Kaiser
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Jun 14, 2002
Inventors
Maurice William Slack
Trent Michael Victor Kaiser
Assignee (at issue)
TESCOM CORPORATION
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.