Granted Patent
Utility
US 4,261,107 · App. 06/127,672
Coordinate locating device
Inventors:
Harold K. Coleman, Kenneth F. Rossman
Patented Case
View Patent ↗
Granted: Apr 14, 1981
Filed: Mar 6, 1980
Inventors
Harold K. Coleman
Kenneth F. Rossman
Assignee (at issue)
Caterpillar Tractor 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.