Granted Patent
Utility
US 4,548,389 · App. 06/533,202
Redundant high-pressure seal for fluid spring
Inventors:
Lawther O. Smith, Timothy L. Howard, Franz A. Kautz
Patented Case
View Patent ↗
Granted: Oct 22, 1985
Filed: Sep 16, 1983
Inventors
Lawther O. Smith
Timothy L. Howard
Franz A. Kautz
Assignee (at issue)
Fichtel & Sachs Industries, 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.