Granted Patent
Utility
US 4,300,451 · App. 05/914,450
Method and apparatus for measuring pneumatic differential drag forces
Inventor:
Bradley Sallee
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Jun 12, 1978
Inventor
Bradley Sallee
Assignee (at issue)
Tracor, 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.