Granted Patent
Utility
US 4,265,689 · App. 06/029,880
Methods of joining glass objects
Inventor:
Cyril Jeffrey
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Apr 13, 1979
Inventor
Cyril Jeffrey
Assignee (at issue)
Plessey Handel Und Investments AG
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.