The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1992
Filed:
May. 17, 1989
Applicant:
Inventor:
James R Evans, Carlsbad, CA (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C05F / ; C05F / ; C05C / ;
U.S. Cl.
CPC ...
71 23 ; 71 26 ; 71 6413 ; 71903 ; 71 28 ;
Abstract
A soil amendment is disclosed containing, by volume, about 20 to 60% cross-cut redwood grains or ground redwood bark of a particle size substantially in the range of 0.5 to 3 mm, about 15 to 50% grape pumice, about 0 to 20% cross-cut fir grains of a particle size substantially in the range of 0.5 to 3 mm, about 0 to 20% agricultural pumice and about 0 to 25% aged whole rice hulls.