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Official data from INPI

CÉLULA PARA ELETRÓLISE DE CLORETO DE METAL ALCALINO.

ConcedidaInvention Patent

Application data

Number

PI8107387

Type

Invention Patent

Filing

11/13/1981

Publication

08/10/1982

Progress at the INPI

  1. Filing11/13/81
  2. Publication08/10/82
  3. Examination12/14/82
  4. Allowance09/13/88
  5. Grant05/30/89
  6. Terminated09/20/94

The patent was granted on 05/30/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Asahi Glass Company Ltd.

JP

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Inventors

J. I. (pessoa física)

K. S. (pessoa física)

M. N. (pessoa física)

Y. S. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

160116/880 · 11/15/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

01/03/1989

RPI 950

Deferimento

#9.1

09/13/1988

RPI 934

Conhecimento de parecer técnico

#7.1

06/16/1987

RPI 869

Exigência - art. 36 da LPI

#6.1

06/26/1984

RPI 714

Solicitação de exame técnico

#4.1

12/14/1982

RPI 634

Publicação do pedido de patente

#3.1

08/10/1982

RPI 616

Pedido de patente depositado

#2.1

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

09/20/1994

RPI 1242

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