Granted Patent
Utility
US 4,432,490 · App. 06/411,438
Rear loading single serving pie container and blank for forming same
Inventor:
Harry H. Roberts
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Aug 25, 1982
Inventor
Harry H. Roberts
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.