Granted Patent
Utility
US 5,572,809 · App. 08/414,991
Control for hydraulically operated construction machine having multiple tandem articulated members
Inventors:
Timothy E. Steenwyk, Eric J. Walstra
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Mar 30, 1995
Inventors
Timothy E. Steenwyk
Eric J. Walstra
Assignee (at issue)
Laser Alignment, 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.