Granted Patent
Utility
US 6,592,152 · App. 09/673,079
Joint structure for filtration membrane module
Inventors:
Tatsuo Nejigaki, Nobuhiko Suga
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Oct 10, 2000
Inventors
Tatsuo Nejigaki
Nobuhiko Suga
Assignee (at issue)
ASAHI KASEI KABUSHIKI KAISHA
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.