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Official data from INPI

CÁTODO PARA A PRODUÇÃO ELETROLÍTICA DE HIDROGÊNIO

ConcedidaInvention Patent

Application data

Number

PI8306939

Type

Invention Patent

Filing

12/16/1983

Publication

07/24/1984

Progress at the INPI

  1. Filing12/16/83
  2. Publication07/24/84
  3. Examination08/05/86
  4. Allowance02/08/89
  5. Grant08/29/89
  6. Terminated04/23/96

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Solvay & Cie.

BE

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Inventors

E. N. (pessoa física)

IT

L. M. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

FR

8221390 · 12/17/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

06/06/1989

RPI 972

Republicação - classificação IPC

#15.11

05/02/1989

RPI 967

Deferimento

#9.1

02/08/1989

RPI 955

Exigência - art. 36 da LPI

#6.1

09/06/1988

RPI 933

6.2

06/30/1987

RPI 871

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

07/24/1984

RPI 718

Pedido de patente depositado

#2.1

02/28/1984

RPI 697

Anuidade - prazo legal encerrado

#18.2

04/23/1996

RPI 1325

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