Granted Patent
Utility
US 4,840,653 · App. 07/246,954
Fabrication of high-silica glass article
Inventor:
Eliezer M. Rabinovich
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Sep 19, 1988
Inventor
Eliezer M. Rabinovich
Assignee (at issue)
American Telephone and Telegraph Company, AT&T Bell Laboratories
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.