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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE UMA COMPOSIÇÃO PARA ELETRODO INERTE.

Em ExigênciaInvention Patent
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Application data

Number

PI8401697

Type

Invention Patent

Filing

04/11/1984

Publication

11/20/1984
View on INPI

Progress at the INPI

  1. Filing04/11/84
  2. Publication11/20/84
  3. Examination12/23/86
  4. Allowance07/24/90
  5. Grant02/13/91
  6. Terminated06/06/95

The patent was granted on 02/13/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Aluminum Company Of American

US

Inventors

R. R. (pessoa física)

US

S. R. (pessoa física)

US

Technical data

IPC Classification

C25C 7/02

Priority claims

US

483.693 · 04/11/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

05/09/1989

RPI 968

6.2

07/19/1988

RPI 926

Solicitação de exame técnico

#4.1

12/23/1986

RPI 844

Publicação do pedido de patente

#3.1

11/20/1984

RPI 735

Pedido de patente depositado

#2.1

06/19/1984

RPI 713

Anuidade - prazo legal encerrado

#18.2

06/06/1995

RPI 1279

Concessão da patente

#16.1

02/13/1991

RPI 1054

Notificação para pagamento de retribuição

#13.1

11/06/1990

RPI 1040

Deferimento

#9.1

07/24/1990

RPI 1025

Exigência - art. 36 da LPI

#6.1

01/16/1990

RPI 1002

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