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Invention PatentPI9002224

Cabeça de corte com conduto axial de oxigênio de corte

Air Liquide Brasil S/A

Arquivada/ExtintaIPC B23K 7/00

Progress at the INPI

  6. Expired05/18/10

The letters patent expired on 05/18/2010: 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: 05/18/2010. We update with every new RPI gazette, published weekly.

Technical data

IPC Classification

B23K 7/00

Priority claims

FR

89 06247 · 05/12/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

05/18/2010

RPI 2054

Carta-patente expirada

21.1

Patente extinta em 11/05/2005

11/18/1997

RPI 1407

Alteração de nome deferida

25.4

09/26/1995

RPI 1295

Concessão da patente

16.1

03/07/1995

RPI 1266

Deferimento

9.1

10/19/1993

RPI 1194

Solicitação de exame técnico

4.1

08/13/1991

RPI 1080

Publicação do pedido de patente

3.1

09/25/1990

RPI 1034

Pedido de patente depositado

2.1

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