Granted Patent
Utility
US 4,625,820 · App. 06/721,430
Crawler frame to base frame connection
Inventor:
Damon N. Christian
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: Apr 9, 1985
Inventor
Damon N. Christian
Assignee (at issue)
Kidde Holding, Inc.
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.