Granted Patent
Utility
US 5,531,271 · App. 08/414,201
Whipstock side support
Inventor:
Thurman B. Carter
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Mar 31, 1995
Inventor
Thurman B. Carter
Assignee (at issue)
Weatherford Holding U.S., 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.