Granted Patent
Utility
US 4,770,294 · App. 06/514,756
Two-piece beverage carrier
Inventor:
Earl J. Graser
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Jul 18, 1983
Inventor
Earl J. Graser
Assignee (at issue)
Manville Service Corporation
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.