Granted Patent
Utility
US 5,375,663 · App. 08/042,092
Earthmoving apparatus and method for grading land providing continuous resurveying
Inventor:
Ted L. Teach
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Apr 1, 1993
Inventor
Ted L. Teach
Assignee (at issue)
Spectra-Physics Laserplane, 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.