Granted Patent
Utility
US 6,149,049 · App. 09/507,367
Metallurgical bonding of dissimilar metal tubes
Inventors:
Scott A. Loftfield, Richard E. Loftfield
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Feb 18, 2000
Inventors
Scott A. Loftfield
Richard E. Loftfield
Assignee (at issue)
Huron Tech Corp
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.