Granted Patent
Utility
US 4,537,813 · App. 06/488,315
Photomask encapsulation
Inventor:
Birol Kuyel
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Apr 25, 1983
Inventor
Birol Kuyel
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.