Granted Patent
Utility
US 6,541,083 · App. 09/480,895
Vacuum IG unit with alkali silicate edge seal and/or spacers
Inventors:
Ksenia A. Landa, Leonid Landa, Steven L. Aggas, Yei-Ping (Mimi) H. Wang
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jan 11, 2000
Inventors
Ksenia A. Landa
Leonid Landa
Steven L. Aggas
Yei-Ping (Mimi) H. Wang
Assignee (at issue)
Guardian Industries Corp.
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.