Granted Patent
Utility
US 6,248,977 · App. 09/454,439
Welding torch attachment
Inventors:
Jeffrey A. Bessler, James D. Cunningham, Gerald M. Ertel, Tammy J. Allen
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Dec 3, 1999
Inventors
Jeffrey A. Bessler
James D. Cunningham
Gerald M. Ertel
Tammy J. Allen
Assignee (at issue)
HILL-ROM, INC.
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.