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Official data from INPI

LIGA DE AÇO FERRÍTICA, DEFORMÁVEL A QUENTE

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9001241

Type

Invention Patent

Filing

03/15/1990

Publication

03/26/1991
View on INPI

Progress at the INPI

  1. Filing03/15/90
  2. Publication03/26/91
  3. Examination08/13/91
  4. Allowance06/29/99
  5. Grant02/08/00
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Krupp VDM GmbH

DE

VDM Nickel-Technologie AG

DE

See this company's full portfolio

Inventors

U. B. (pessoa física)

DE

U. H. (pessoa física)

DE

Technical data

IPC Classification

C22C 38/28

Priority claims

DE

P 39 08 526.0 · 03/16/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 15/03/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

02/08/2000

RPI 1518

Deferimento

#9.1

06/29/1999

RPI 1486

Exigência - art. 36 da LPI

#6.1

04/22/1998

RPI 1426

Republicação - titular

#25.11

08/05/1997

RPI 1392

Alteração de sede deferida

#25.7

07/01/1997

RPI 1387

Alteração de nome deferida

#25.4

06/24/1997

RPI 1386

Alteração de nome deferida

#25.4

06/17/1997

RPI 1385

6.2

03/19/1996

RPI 1320

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

Publicação do pedido de patente

#3.1

03/26/1991

RPI 1060

Pedido de patente depositado

#2.1

08/07/1990

RPI 1027

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