Granted Patent
Utility
US 4,964,193 · App. 07/040,881
Hinge
Inventors:
Peter R. Rommelfaenger, Thomas A. Neuwirth
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Apr 21, 1987
Inventors
Peter R. Rommelfaenger
Thomas A. Neuwirth
Assignee (at issue)
E.R. Wagner Manufacturing Co.
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.