Granted Patent
Utility
US 6,131,761 · App. 09/325,591
Can bottom having improved strength and apparatus for making same
Inventors:
Gin-Fung Cheng, Floyd Jones
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jun 3, 1999
Inventors
Gin-Fung Cheng
Floyd Jones
Assignee (at issue)
Crown Cork & Seal Technologies 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.