Granted Patent
Utility
US 5,042,852 · App. 07/592,233
Latch and rod guard assembly
Inventors:
Roger A. Vitt, Jorge Navarro, Paul J. Haeck
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Oct 3, 1990
Inventors
Roger A. Vitt
Jorge Navarro
Paul J. Haeck
Assignee (at issue)
Von Duprin 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.