Carta-patente expirada
#21.1
PATENTE EXTINTA EM 24.01.2022
06/14/2022
RPI 2684
Application data
Number
PI0101695Type
Filing
Publication
The letters patent expired on 06/14/2022: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 06/14/2022. We update with every new RPI gazette, published weekly.
Applicants
Saint-Gobain Ceramics & Plastics, Inc.
US
Inventors
A. G. (pessoa física)
IN
IPC Classification
Priority claims
US
09/564,257 · 05/04/2000
Abstract
Patente de Invenção: "GRÃO ABRASIVO MELHORADO". Grãos abrasivos de alfa alumina que são particularmente bem ajustados para aplicações de moagem a média a baixa pressão onde os grãos compreendem microvazios uniformemente dispersos.
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