Granted Patent
Utility
US 6,643,077 · App. 10/122,558
Methods and apparatus for positioning optical prisms
Inventors:
Simon Magarill, Blake Sansbury
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Apr 15, 2002
Inventors
Simon Magarill
Blake Sansbury
Assignee (at issue)
3M INNOVATIVE PROPERTIES COMPANY
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.