Granted Patent
Utility
US 4,704,887 · App. 06/915,889
Method and apparatus for making shells for can ends
Inventors:
Henry C. Bachmann, Omar L. Brown, Ermal C. Fraze, David K. Wynn, James R. Gregg
Patented Case
View Patent ↗
Granted: Nov 10, 1987
Filed: Oct 2, 1986
Inventors
Henry C. Bachmann
Omar L. Brown
Ermal C. Fraze
David K. Wynn
James R. Gregg
Assignee (at issue)
Dayton Reliable Tool & Mfg. Co.
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.