Granted Patent
Utility
US 5,437,340 · App. 08/264,684
Millout whipstock apparatus and method
Inventors:
Richard B. Lee, John W. Brandon
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Jun 23, 1994
Inventors
Richard B. Lee
John W. Brandon
Assignee (at issue)
Hunting MCS, 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.