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:
Nov. 21, 1989
Filed:
Feb. 27, 1989
Applicant:
Inventors:
Gunter Frey, Schliengen, DE;
Rudolf Wagner, Heitersheim, DE;
Assignee:
Firma Carl Freudenberg, Weinheim/Bergstr., DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A10G / ;
U.S. Cl.
CPC ...
47 77 ; 47 74 ; 47 84 ;
Abstract
A tubular sleeve for a plant germination substrate consists of a a polymer mass and nonwoven, bonded fiber material treated with fungicides, in which cellulose fibers predominate. The rest of the synthetic fibers have a size of 1.3 to 17 dtex and give the fiber material a porosity of 1000 to 1600 l/s.m.sup.2 (air passage at 1.0 mbar). The fiber material is bonded by a binding agent and additionally contains fertilizer embedded in the polymer mass.