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Official data from INPI

PROCESSO PARA A ELETROLISE DE UMA SOLUCAO AQUOSA DE HALOGENETO DE METAL ALCALINO

Em AnáliseInvention Patent

Application data

Number

PI7604568

Type

Invention Patent

Filing

07/15/1975

Publication

-

Progress at the INPI

  1. Filing07/15/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/29/82
  6. Expired07/20/93

The letters patent expired on 07/20/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. I. (pessoa física)

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Inventors

O. S. (pessoa física)

S. M. (pessoa física)

T. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

313

01/24/1989

RPI 953

332

03/29/1988

RPI 910

19.1

04/02/1985

RPI 754

336

10/02/1984

RPI 728

200

02/14/1984

RPI 695

210

08/23/1983

RPI 670

Pedido de licença voluntária

#17.1

08/09/1983

RPI 668

Pedido de licença voluntária

#17.1

09/08/1982

RPI 620

Concessão da patente

#16.1

06/29/1982

RPI 610

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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