Granted Patent
Utility
US 5,934,023 · App. 08/956,366
Door hardware protection device
Inventors:
William Gurzenda, Boyd Thomas
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Oct 23, 1997
Inventors
William Gurzenda
Boyd Thomas
Assignee (at issue)
Rockwood Manufacturing Company
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.