Granted Patent
Utility
US 4,631,079 · App. 06/801,431
Method for stretching a glass rod
Inventors:
Harold R. Clark, David A. Nicol
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Nov 25, 1985
Inventors
Harold R. Clark
David A. Nicol
Assignee (at issue)
AT&T Technologies Incorporated
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.