Granted Patent
Utility
US 4,636,030 · App. 06/582,008
Optical alignment apparatus utilizing prismatic elements
Inventors:
Andrew Cannon Carter, William J. Stewart
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Feb 21, 1984
Inventors
Andrew Cannon Carter
William J. Stewart
Assignee (at issue)
Plessey Overseas Limited
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.