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Official data from INPI

PROCESSO DE REMOÇÃO DE METAL DE UMA SOLUÇÃO DOTADA DE TEOR DE METAL RELATIVAMENTE BAIXO E CÉLULA PARA REMOVER METAL DE SOLUÇÃO ATRAVÉS DE ELETRÓLISE

Em AnáliseInvention Patent
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Application data

Number

PI8505481

Type

Invention Patent

Filing

01/16/1985

Publication

02/18/1986
View on INPI

Progress at the INPI

  1. Filing01/16/85
  2. Publication02/18/86
  3. Examination11/24/87
  4. Allowance03/23/93
  5. Grant08/31/93
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 01/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C.P. Chemical, Inc

US

Inventors

J. E. (pessoa física)

GB

Technical data

IPC Classification

C25C 5/00

Priority claims

US

583.809 · 02/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.1

01/03/1989

RPI 950

Solicitação de exame técnico

#4.1

11/24/1987

RPI 892

Notificação de entrada na fase nacional - PCT

#1.3

02/18/1986

RPI 800

Carta-patente expirada

#21.1

Patente extinta em 16/01/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

07/13/1993

RPI 1180

Deferimento

#9.1

03/23/1993

RPI 1164

Exigência - art. 36 da LPI

#6.1

11/17/1992

RPI 1146

Exigência - art. 36 da LPI

#6.1

04/21/1992

RPI 1116

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