Granted Patent
Utility
US 5,149,238 · App. 07/648,045
Pressure resistant sheet metal end closure
Inventors:
Carl McEldowney, Philip Spangler
Patented Case
View Patent ↗
Granted: Sep 22, 1992
Filed: Jan 30, 1991
Inventors
Carl McEldowney
Philip Spangler
Assignee (at issue)
The Stolle 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.