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Official data from INPI

DISPOSIÇÃO PARA PRODUÇÃO DE UMA CORRENTE DE SOLDA COM UMA PARTE DE CORRENTE CONTÍNUA E COM IMPULSOS DE CORRENTE SUPERPOSTOS AQUELA.

PublicadaInvention Patent

Application data

Number

PI8701051

Type

Invention Patent

Filing

03/06/1987

Publication

01/05/1988

Progress at the INPI

  1. Filing03/06/87
  2. Publication01/05/88
  3. Examination08/21/90
  4. Allowance
  5. Grant
  6. In force

Published on 01/05/1988, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 01/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Castolin S.A.

CH

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Inventors

W. I. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

943/86-2 · 03/07/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/05/1988

RPI 898

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Retificação

#15.3

02/02/1993

RPI 1157

Solicitação de exame técnico

#4.1

08/21/1990

RPI 1029

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