Granted Patent
Utility
US 4,356,930 · App. 06/255,377
Container, engagement ring and cover assembly
Inventor:
Charles R. Roper, Jr.
Patented Case
View Patent ↗
Granted: Nov 2, 1982
Filed: Apr 20, 1981
Inventor
Charles R. Roper, Jr.
Assignees (at issue)
William H. Roper
Robert E. Roper
Elvere Roper
Ralph A. Miller
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.