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Official data from INPI

PROCESSO PARA TRATAMENTO DE COMPOSTOS SULFATADOS DE CHUMBO, PARA RECUPERAÇÃO DE CHUMBO METÁLICO E DE UM SULFATO COM ELEVADA PUREZA, E INSTALAÇÃO PARA A SUA REALIZAÇÃO

IndeferidaInvention Patent

Application data

Number

PI8202453

Type

Invention Patent

Filing

04/28/1982

Publication

04/12/1983

Progress at the INPI

Under appeal
  1. Filing04/28/82
  2. Publication04/12/83
  3. Examination03/20/84
  4. Refused02/03/87
  5. Grant
  6. In force

The application was refused by the INPI on 02/03/1987. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 02/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Tonolli Construzioni S.P.A.

IT

Inventors

P. F. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

21447A/81 · 04/29/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

02/03/1987

RPI 850

Conhecimento de parecer técnico

#7.1

07/23/1985

RPI 770

6.2

11/27/1984

RPI 736

Solicitação de exame técnico

#4.1

03/20/1984

RPI 700

Publicação do pedido de patente

#3.1

04/12/1983

RPI 651

Pedido de patente depositado

#2.1

06/15/1982

RPI 608

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