Granted Patent
Utility
US 4,274,680 · App. 06/108,971
Selective anti-spin brake system
Inventors:
Alfred W. Sieving, James M. Stanley
Patented Case
View Patent ↗
Granted: Jun 23, 1981
Filed: Aug 13, 1979
Inventors
Alfred W. Sieving
James M. Stanley
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.