Granted Patent
Utility
US 6,521,104 · App. 09/578,166
Configurable vacuum system and method
Inventors:
Jerry D. Kidd, Craig D. Harrington, Daniel Hopkins
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: May 22, 2000
Inventors
Jerry D. Kidd
Craig D. Harrington
Daniel Hopkins
Assignee (at issue)
Basic Resources, 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.