Granted Patent
Utility
US 4,553,760 · App. 06/672,725
Flexible seal for a spherical joint
Inventors:
Lyle REED, Arthur E. Olt, Jr.
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Nov 19, 1984
Inventors
Lyle REED
Arthur E. Olt, Jr.
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.