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Official data from INPI

PROCESSO PARA A ELETRÓLISE DE UMA SOLUÇÃO AQUOSA DE UM CLORETO DE METAL ALCALINO E ÂNODO PARA O MESMO.

ConcedidaInvention Patent

Application data

Number

PI8102349

Type

Invention Patent

Filing

04/15/1981

Publication

12/22/1981

Progress at the INPI

  1. Filing04/15/81
  2. Publication12/22/81
  3. Examination
  4. Allowance12/16/86
  5. Grant07/28/87
  6. Expired10/01/96

The letters patent expired on 10/01/1996: 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. K. (pessoa física)

JP

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Inventors

H. M. (pessoa física)

M. Y. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

55-48634 · 04/15/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Exigência - art. 36 da LPI

#6.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

12/04/1984

RPI 737

14.1

04/27/1982

RPI 601

Publicação do pedido de patente

#3.1

12/22/1981

RPI 583

Carta-patente expirada

#21.1

10/01/1996

RPI 1348

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