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Official data from INPI

AÇO TRABALHADO A FRIO COM ELEVADA RESISTÊNCIA À PRESSÃO E UTILIZAÇÃO DESSE AÇO

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9005350

Type

Invention Patent

Filing

10/23/1990

Publication

09/17/1991
View on INPI

Progress at the INPI

  1. Filing10/23/90
  2. Publication09/17/91
  3. Examination12/10/91
  4. Allowance06/16/98
  5. Grant12/29/98
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. M. (pessoa física)

AT

Bohler Edelstahl GMBH

AT

B. A. (pessoa física)

AT

Inventors

H. S. (pessoa física)

AT

K. L. (pessoa física)

AT

Technical data

IPC Classification

C22C 38/02C22C 38/04C22C 38/06C22C 38/12C23C 8/40

Priority claims

AT

A 2423/89 · 10/23/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/10/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

06/16/1998

RPI 1434

14.1

07/04/1995

RPI 1283

14.11

07/04/1995

RPI 1283

14.1

07/19/1994

RPI 1233

14.4

07/12/1994

RPI 1232

Solicitação de exame técnico

#4.1

12/10/1991

RPI 1097

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/16/1991

RPI 1063

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