Granted Patent
Utility
US 4,469,258 · App. 06/406,102
Tray with compound sealed lid
Inventors:
Robert V. Wright, Charles Csiszar
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Aug 6, 1982
Inventors
Robert V. Wright
Charles Csiszar
Assignee (at issue)
Champion International Corporation Limited
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.