Granted Patent
Utility
US 4,247,277 · App. 06/006,879
Cup bead or fill line former
Inventor:
Thomas E. Marion
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Jan 25, 1979
Inventor
Thomas E. Marion
Assignee (at issue)
Maryland Cup 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.