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Official data from INPI

BANHO DE ELETROREVESTIMENTO DE ZINCO E PROCESSO PARA ELETRODEPOSICAO DE UM DEPOSITO DE ZINCO SOBRE UM SUBSTRATO

ConcedidaInvention Patent

Application data

Number

PI8302697

Type

Invention Patent

Filing

05/24/1982

Publication

01/10/1984

Progress at the INPI

  1. Filing05/24/82
  2. Publication01/10/84
  3. Examination03/07/84
  4. Allowance03/15/88
  5. Grant09/27/88
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OCCIDENTAL CHEM CO [US]

See this company's full portfolio

Inventors

M. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

07/19/1988

RPI 926

Deferimento

#9.1

03/15/1988

RPI 908

Exigência - art. 36 da LPI

#6.1

08/18/1987

RPI 878

Conhecimento de parecer técnico

#7.1

05/28/1985

RPI 762

Solicitação de exame técnico

#4.1

03/07/1984

RPI 698

Publicação do pedido de patente

#3.1

01/10/1984

RPI 690

Pedido de patente depositado

#2.1

07/05/1983

RPI 663

Carta-patente expirada

#21.1

Patente extinta em 23/05/98

08/19/2008

RPI 1963

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