Granted Patent
Utility
US 5,577,876 · App. 08/199,120
Hydraulic interblock system
Inventors:
Thomas Q. Haeder, Larry E. Albright, Orlan J. Loraas, William C. Shelbourn, Gerald M. Berg, Lyle L. Johnson, Thomas M. Sagaser, Knute K. Brock
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: Feb 22, 1994
Inventors
Thomas Q. Haeder
Larry E. Albright
Orlan J. Loraas
William C. Shelbourn
Gerald M. Berg
Lyle L. Johnson
Thomas M. Sagaser
Knute K. Brock
Assignee (at issue)
CLARK EQUIPMENT COMPANY
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.