Granted Patent
Utility
US 4,547,446 · App. 06/505,591
Motion measurement and alignment method and apparatus
Inventor:
Wai-Ming Tam
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Jun 20, 1983
Inventor
Wai-Ming Tam
Assignee (at issue)
PerkinElmer, 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.