Granted Patent
Utility
US 4,315,646 · App. 06/142,933
Door holder for construction vehicles and the like
Inventor:
Charles P. McReynolds
Patented Case
View Patent ↗
Granted: Feb 16, 1982
Filed: Jan 21, 1980
Inventor
Charles P. McReynolds
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.