Granted Patent
Utility
US 4,170,377 · App. 05/884,009
Velocity responsive deflector blade and pivotal mounting therefor
Inventor:
Charles E. Ingram
Patented Case
View Patent ↗
Granted: Oct 9, 1979
Filed: Mar 6, 1978
Inventor
Charles E. Ingram
Assignee (at issue)
Fourstar Group 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.