Granted Patent
Utility
US 6,358,312 · App. 09/565,631
Sports field soil conditioner
Inventors:
James D. Tanner, Mark E. Lewry
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: May 4, 2000
Inventors
James D. Tanner
Mark E. Lewry
Assignee (at issue)
Aimcor Corporation
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.