Granted Patent
Utility
US 5,252,434 · App. 07/936,051
Method for forming a sloped surface having a predetermined slope
Inventor:
Greg E. Blonder
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: Aug 26, 1992
Inventor
Greg E. Blonder
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.