Granted Patent
Utility
US 4,262,809 · App. 05/951,183
Slotted beam and loadlock therefor
Inventor:
Kennedy McConnell
Patented Case
View Patent ↗
Granted: Apr 21, 1981
Filed: Oct 13, 1978
Inventor
Kennedy McConnell
Assignee (at issue)
The Interlake Companies, Inc.
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.