Granted Patent
Utility
US 4,402,433 · App. 06/080,999
Two part container with adjustable vents
Inventor:
George P. Webinger
Patented Case
View Patent ↗
Granted: Sep 6, 1983
Filed: Oct 1, 1979
Inventor
George P. Webinger
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.