Granted Patent
Utility
US 5,734,142 · App. 08/684,473
Method of welding electrically conductive metal profiles
Inventor:
John Kazmierczak
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Jul 19, 1996
Inventor
John Kazmierczak
Assignee (at issue)
TREK BICYCLE 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.