Granted Patent
Utility
US 4,866,911 · App. 07/126,456
Method of forming a vacuum package with hermetic reclosure
Inventors:
Paul E. Grindrod, Ray H. Griesbach, Darrell G. Cornish
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Nov 30, 1987
Inventors
Paul E. Grindrod
Ray H. Griesbach
Darrell G. Cornish
Assignee (at issue)
Oscar Mayer Foods 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.