Granted Patent
Utility
US 6,805,385 · App. 09/200,179
Non-detachable press fit arrangement between a fitting and an end portion of a metal pipe
Inventor:
Walter Viegener
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Nov 25, 1998
Inventor
Walter Viegener
Assignee (at issue)
Franz Viegener II GmbH & Co. KG
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.