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:
Feb. 11, 1992
Filed:
Mar. 15, 1990
Applicant:
Inventor:
Bernard Kafka, Rantigny, FR;
Assignee:
Isover Saint-Gobain, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
A01G / ;
U.S. Cl.
CPC ...
47 64 ; 47 58 ; 47 87 ;
Abstract
A substrate for out-of-ground cultivation is made of a felt of mineral fibers obtained by continuous longitudinal compression, at a rate between 1.5 and 15, of a sheet of mineral fibers in which the fibers are arranged in layers or strata parallel to the upper and lower faces of this sheet. The compression takes place before the heat treatment of the sheet for setting the binder.