Granted Patent
Utility
US 4,422,650 · App. 06/421,172
Flexible seal assembly
Inventors:
Harold L. Reinsma, Michael A. Roussin, Albert L. Woody
Patented Case
View Patent ↗
Granted: Dec 27, 1983
Filed: Sep 22, 1982
Inventors
Harold L. Reinsma
Michael A. Roussin
Albert L. Woody
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.