Granted Patent
Utility
US 4,605,428 · App. 06/637,492
Sintered high-silica glass and articles comprising same
Inventors:
David W. Johnson, Jr., John B. MacChesney, Eleizer M. Rabinovich
Patented Case
View Patent ↗
Granted: Aug 12, 1986
Filed: Aug 3, 1984
Inventors
David W. Johnson, Jr.
John B. MacChesney
Eleizer M. Rabinovich
Assignee (at issue)
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.