Granted Patent
Utility
US 6,743,511 · App. 10/212,631
Method of manufacturing a PTFE preform using thermal fusion
Inventors:
Roxanne Dittrich, Taggart William Albert Mills
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Aug 5, 2002
Inventors
Roxanne Dittrich
Taggart William Albert Mills
Assignee (at issue)
Coltec Industrial Products, 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.