Granted Patent
Utility
US 6,767,641 · App. 10/258,285
Method for sealing fine groove with siliceous material and substrate having siliceous coating formed thereon
Inventors:
Yasuo Shimizu, Yuuji Tashiro, Tomoko Aoki
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Oct 23, 2002
Inventors
Yasuo Shimizu
Yuuji Tashiro
Tomoko Aoki
Assignee (at issue)
Clariant Finance (BVI) Limited
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.