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:
Sep. 09, 1980
Filed:
Jul. 24, 1978
Jean-Pierre Slonina, Le Vesinet, FR;
Pierre Girard, Saint Gratien, FR;
Jacques Boucher, Argenteuil, FR;
Joseph Gellon, Glichy, FR;
Le Carbone-Lorraine, Paris, FR;
Abstract
Fibrous substrates intended for the production of composite bodies are produced from sheet material consisting of fibrous filaments or threads bound into a coherent sheet with a binder by providing fine, substantially uniformly sized and distributed perforations in at least selected areas of the coherent sheet, subdividing the perforated sheet into a plurality of substantially identical smaller flat sheets each comprising at least one of said selected areas, stacking the smaller sheets one upon another so that in the resulting stack the perforations in one sheet overlie the perforations in the immediately underlying sheet and thus form passages through the stack and thereafter threading through said passages in said stack strands or rods formed from fibrous filaments or threads which have been bound together with a binder.