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Official data from INPI

PROCESSO PARA ELETRODEPOSITAR UMA CAMADA DE COBERTURA DE CHUMBO-ESTANHO SOBRE A SUPERFICIE DE UMA ESTRUTURA DE MANCAL,E PROCESSO PARA REMOVER IONS DE COBRE A PARTIR DE UM BANHO CONTENDO IONS DE CHUMBO,IONS DE COBRE E IONS DE ESTANHO

ConcedidaInvention Patent

Application data

Number

PI7908545

Type

Invention Patent

Filing

01/22/1979

Publication

-

Progress at the INPI

  1. Filing01/22/79
  2. Publication
  3. Examination07/05/83
  4. Allowance08/07/84
  5. Grant03/26/85
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GOULD INC

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Inventors

K. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Republicação - classificação IPC

#15.11

02/14/1984

RPI 695

Exigência - art. 36 da LPI

#6.1

01/03/1984

RPI 689

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

14.1

01/11/1983

RPI 638

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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