Granted Patent
Utility
US 5,671,541 · App. 08/523,048
Accuracy verification devices for coordinate measuring machines
Inventors:
YuZhong Dai, Thomas Jesse Charlton
Patented Case
View Patent ↗
Granted: Sep 30, 1997
Filed: Sep 1, 1995
Inventors
YuZhong Dai
Thomas Jesse Charlton
Assignee (at issue)
Brown & Sharpe Manufacturing Co.
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.