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Official data from INPI

SISTEMA DE ESTABILIZAÇÃO PARA BRANQUEAMENTO COM PERÓXIDO DE HIDROGÊNIO

ArquivadaInvention Patent

Application data

Number

PI9105207

Type

Invention Patent

Filing

11/29/1991

Publication

08/18/1992

Progress at the INPI

  1. Filing11/29/91
  2. Publication08/18/92
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 11/29/1991 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/18/1994. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R.Grace & Co.-Conn

US

See this company's full portfolio

Inventors

A. S. (pessoa física)

US

M. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

625.736 · 12/11/1990

Abstract

Trata-se de um sistema de estabilização para branqueamento com peróxido contendo fosfonato, agente de tamponamento e agente de quelação de aminoácido que estabiliza, de maneira eficaz, o agente de branqueamento, de peróxido, sem a utilização de silicatos.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

10/18/1994

RPI 1246

Publicação do pedido de patente

#3.1

08/18/1992

RPI 1133

Pedido de patente depositado

#2.1

01/28/1992

RPI 1104

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