Granted Patent
Utility
US 6,581,546 · App. 10/076,717
Animal containment system having a dynamically changing perimeter
Inventors:
Donald Dalland, Gerald Grabowski
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Feb 14, 2002
Inventors
Donald Dalland
Gerald Grabowski
Assignee (at issue)
Waters Instruments, 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.