Granted Patent
Utility
US 6,651,847 · App. 10/112,778
Double pressurized container for charging undercup and double pressurized products using the container
Inventors:
Satoshi Mekata, Masazumi Tanaka
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Apr 2, 2002
Inventors
Satoshi Mekata
Masazumi Tanaka
Assignee (at issue)
DAIZO 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.