Granted Patent
Utility
US 6,136,247 · App. 09/199,695
Method of forming a headed thermoplastic tube
Inventor:
John J. Rhoades
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Nov 25, 1998
Inventor
John J. Rhoades
Assignee (at issue)
Thatcher Tubes LLC
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.