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Official data from INPI

PROCESSO PARA CONTROLE DO CRESCIMENTO DE GRÃO SECUNDÁRIO E MELHORIA DA PERDA NO NÚCLEO DE UMA TIRA DE AÇO ELÉTRICO ORIENTADO, AÇO ELÉTRICO ORIENTADO E NÚCLEO MAGNÉTICO FABRICADO COM AÇO ELÉTRICO ORIENTADO.

Em AnáliseInvention Patent

Application data

Number

PI8306096

Type

Invention Patent

Filing

11/07/1983

Publication

06/12/1984

Progress at the INPI

  1. Filing11/07/83
  2. Publication06/12/84
  3. Examination10/09/84
  4. Refused02/17/88
  5. Grant
  6. In force

The application was refused on 02/17/1988 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ARMCO INC.

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Inventors

S. W. (pessoa física)

Y. L. (pessoa física)

Technical data

IPC Classification

Priority claims

US

439,909 · 11/08/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

02/17/1988

RPI 904

Petição de recurso

#12.2

02/03/1987

RPI 850

Indeferimento

#9.2

09/30/1986

RPI 832

Conhecimento de parecer técnico

#7.1

10/08/1985

RPI 781

Solicitação de exame técnico

#4.1

10/09/1984

RPI 729

Publicação do pedido de patente

#3.1

06/12/1984

RPI 712

Pedido de patente depositado

#2.1

01/17/1984

RPI 691

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