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Official data from INPI

BARRA E AÇO DE FÁCIL USINAGEMTREFILADA A FRIO RESSULFURIZADA E REFOSFORIZADA

PublicadaInvention Patent
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Application data

Number

PI8702911

Type

Invention Patent

Filing

06/09/1987

Publication

03/08/1988
View on INPI

Progress at the INPI

  1. Filing06/09/87
  2. Publication03/08/88
  3. Examination11/06/90
  4. Allowance
  5. Grant
  6. In force

Published on 03/08/1988, 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: 03/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Western Steel Group, Inc.

US

Inventors

R. S. (pessoa física)

US

R. T. (pessoa física)

US

S. B. (pessoa física)

US

Technical data

IPC Classification

C22C 38/12C22C 38/60

Priority claims

US

872.544 · 06/10/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/08/1988

RPI 907

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C22B 38/12; C22B 38/18.

03/27/2018

RPI 2464

Retificação

#15.3

08/03/1993

RPI 1183

Retificação

#15.3

05/25/1993

RPI 1173

Solicitação de exame técnico

#4.1

11/06/1990

RPI 1040

14.1

03/01/1990

RPI 1007

14.7

02/13/1990

RPI 1006

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