Granted Patent
Utility
US 4,815,574 · App. 07/135,257
Frictionless damper
Inventors:
Douglas P. Taylor, David A. Lee
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: Dec 21, 1987
Inventors
Douglas P. Taylor
David A. Lee
Assignee (at issue)
Tayco Developments, 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.