Granted Patent
Utility
US 6,206,230 · App. 09/455,200
Single piece, push-pull dispensing closure and assembly
Inventors:
Min Wan, Valentin Hierzer
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Dec 6, 1999
Inventors
Min Wan
Valentin Hierzer
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.