Granted Patent
Utility
US 5,733,828 · App. 08/797,118
Hermetic sealing composition
Inventors:
Hiroshi Usui, Tsuneo Manabe, Kazuo Harada, Ryuichi Tanabe
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Feb 10, 1997
Inventors
Hiroshi Usui
Tsuneo Manabe
Kazuo Harada
Ryuichi Tanabe
Assignee (at issue)
ASAHI GLASS CO., 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.