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Official data from INPI

EQUIPAMENTO DE TRABALHO POR ARCO

Em AnáliseInvention Patent

Application data

Number

PI8604404

Type

Invention Patent

Filing

09/15/1986

Publication

05/12/1987

Progress at the INPI

  1. Filing09/15/86
  2. Publication05/12/87
  3. Examination07/18/89
  4. Allowance06/14/94
  5. Grant01/31/95
  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.

Talk to a specialist

Latest action published by the INPI: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Air Liquide Brasil S.A

SP, BR

See this company's full portfolio

Inventors

G. M. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

85.13.675 · 09/16/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/18/1989

RPI 978

Publicação do pedido de patente

#3.1

05/12/1987

RPI 864

Pedido de patente depositado

#2.1

03/24/1987

RPI 857

Carta-patente expirada

#21.1

Patente extinta em 15/09/2001

07/22/2008

RPI 1959

Alteração de nome deferida

#25.4

Alterado de: Oxigênio do Brasil S/A.

05/11/1999

RPI 1479

Concessão da patente

#16.1

01/31/1995

RPI 1261

Notificação para pagamento de retribuição

#13.1

10/18/1994

RPI 1246

Deferimento

#9.1

06/14/1994

RPI 1228

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