Granted Patent
Utility
US 5,332,049 · App. 07/953,013
Composite drill pipe
Inventor:
Craig Tew
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Sep 29, 1992
Inventor
Craig Tew
Assignee (at issue)
Brunswick 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.