Granted Patent
Utility
US 4,128,827 · App. 05/785,797
Travel alarm system
Inventors:
Donald F. Coleman, Sammy J. Rhodes
Patented Case
View Patent ↗
Granted: Dec 5, 1978
Filed: Apr 8, 1977
Inventors
Donald F. Coleman
Sammy J. Rhodes
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.