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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM MATERIAL DE AÇO INOXIDÁVEL DE ALTA RESISTÊNCIA DOTADO DE EXCELENTE TRABALHABILIDADE E ISENTO DE ABRANDAMENTO NA SOLDA

Em AnáliseInvention Patent
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Application data

Number

PI8604065

Type

Invention Patent

Filing

08/26/1986

Publication

11/17/1987
View on INPI

Progress at the INPI

  1. Filing08/26/86
  2. Publication11/17/87
  3. Examination01/12/88
  4. Allowance03/09/93
  5. Grant05/31/94
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 01/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nisshin Steel Company, LTD.

JP

Inventors

K. H. (pessoa física)

JP

T. I. (pessoa física)

JP

Technical data

IPC Classification

C21D 8/02C22C 38/40

Priority claims

JP

186605/85 · 08/27/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/12/1988

RPI 899

Publicação do pedido de patente

#3.1

11/17/1987

RPI 891

Pedido de patente depositado

#2.1

02/10/1987

RPI 851

Carta-patente expirada

#21.1

Patente extinta em 26/08/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

05/31/1994

RPI 1226

9.1.3

07/13/1993

RPI 1180

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

9.1.3

05/25/1993

RPI 1173

Deferimento

#9.1

03/09/1993

RPI 1162

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