Granted Patent
Utility
US 5,017,170 · App. 07/026,926
Brazing method for mounting a tension shadow mask
Inventors:
Lawrence W. Dougherty, William N. Roberts
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Mar 17, 1987
Inventors
Lawrence W. Dougherty
William N. Roberts
Assignee (at issue)
Zenith Electronics 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.