Granted Patent
Utility
US 4,810,233 · App. 06/593,796
Interlocking universal joint seal assembly
Inventors:
John J. Crane, Larry G. Miller
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Mar 27, 1984
Inventors
John J. Crane
Larry G. Miller
Assignee (at issue)
BorgWarner 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.