Granted Patent
Utility
US 6,314,861 · App. 09/336,867
High output spring brake actuator
Inventors:
Teddy D. Smith, Michael D. Stubblefield
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Jun 18, 1999
Inventors
Teddy D. Smith
Michael D. Stubblefield
Assignee (at issue)
TSE Brakes, 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.