Granted Patent
Utility
US 6,470,997 · App. 09/847,458
Apparatus and method for eliminating electrical noise in the fire detect timing signal of an air gun
Inventors:
David McCall, Algernon S. Badger
Patented Case
View Patent ↗
Granted: Oct 29, 2002
Filed: May 2, 2001
Inventors
David McCall
Algernon S. Badger
Assignee (at issue)
Input/Output, 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.