Granted Patent
Utility
US 6,155,749 · App. 09/163,136
Sports field soil conditioner
Inventors:
James D. Tanner, Mark E. Lewry
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Sep 29, 1998
Inventors
James D. Tanner
Mark E. Lewry
Assignee (at issue)
PROFILE PRODUCTS L.L.C.
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.