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Official data from INPI

PROCESSO PARA PRODUÇÃO DE AÇO INOXIDÁVEL DE ALTA RESISTÊNCIA DE ESTRUTURA DUPLEX TENDO EXCELENTE VALOR LIMITE DE MOLA

Arquivada/ExtintaInvention PatentPCT · JP1990000930

Application data

Number

PI9006864

Type

Invention Patent

Filing

07/19/1990

Publication

08/27/1991

PCT

JP1990000930

Progress at the INPI

  1. Filing07/19/90
  2. Publication08/27/91
  3. Examination06/15/93
  4. Allowance12/01/98
  5. Grant06/29/99
  6. Expired01/22/13

The letters patent expired on 01/22/2013: 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: 01/22/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nisshin Steel Co, Ltd

JP

Inventors

C. T. (pessoa física)

JP

H. F. (pessoa física)

JP

K. M. (pessoa física)

JP

T. T. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

190274/1989 · 07/22/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 19/07/2010

01/22/2013

RPI 2194

Concessão da patente

#16.1

06/29/1999

RPI 1486

Deferimento

#9.1

12/01/1998

RPI 1456

Exigência - art. 36 da LPI

#6.1

04/28/1998

RPI 1427

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Notificação de entrada na fase nacional - PCT

#1.3

08/27/1991

RPI 1082

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