Granted Patent
Utility
US 4,207,725 · App. 05/937,666
Package and method of package use
Inventor:
Ernest L. Smith
Patented Case
View Patent ↗
Granted: Jun 17, 1980
Filed: Aug 28, 1978
Inventor
Ernest L. Smith
Assignee (at issue)
Phillips Petroleum Company
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.