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Official data from INPI

Revestimento de elétrodo com catalisador metálico do grupo da plantina e polímero semicondutor.

ConcedidaInvention Patent

Application data

Number

PI8008866

Type

Invention Patent

Filing

10/14/1980

Publication

-

Progress at the INPI

  1. Filing10/14/80
  2. Publication
  3. Examination08/02/83
  4. Allowance11/16/88
  5. Grant07/25/89
  6. Expired11/21/95

The letters patent expired on 11/21/1995: 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

De Nora Permelec S.p.A

IT

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Inventors

G. J. (pessoa física)

H. J. (pessoa física)

K. M. (pessoa física)

Technical data

IPC Classification

Priority claims

US

7935463 · 10/12/1979

US

80/01353 · 10/14/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

03/07/1989

RPI 959

Deferimento

#9.1

11/16/1988

RPI 943

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

Conhecimento de parecer técnico

#7.1

06/02/1987

RPI 867

14.1

11/12/1985

RPI 786

Exigência - art. 36 da LPI

#6.1

03/05/1985

RPI 750

14.4

09/04/1984

RPI 724

Solicitação de exame técnico

#4.1

08/02/1983

RPI 667

Carta-patente expirada

#21.1

11/21/1995

RPI 1303

Pedido de licença compulsória

#20.1

10/09/1990

RPI 1036

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