Granted Patent
Utility
US 6,722,537 · App. 09/980,018
Cartridges for dispensing fluent material
Inventor:
Kenneth Houlbrook
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Apr 22, 2002
Inventor
Kenneth Houlbrook
Assignee (at issue)
CLANTEX LTD
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.