Granted Patent
Utility
US 4,491,144 · App. 06/512,013
Flexible seals for sliding blade dampers
Inventors:
Paul L. Dreyer, Russell F. Rarick
Patented Case
View Patent ↗
Granted: Jan 1, 1985
Filed: Jul 8, 1983
Inventors
Paul L. Dreyer
Russell F. Rarick
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.