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Official data from INPI

APARELHO DE RESPIRAÇÃO PARA APLICAÇÃO NA RECIRCULAÇÃO DE GÁS DE RESPIRAÇÃO, SISTEMA DE RECIRCULAÇÃO DE GÁS DE RESPIRAÇÃO E SISTEMAS DE RECUPERAÇÃO DE RE-RESPIRAÇÃO DE GÁS DE MERGULHADOR

Arquivada/ExtintaInvention PatentPCT · GB1988000725

Application data

Number

PI8807685

Type

Invention Patent

Filing

09/02/1988

Publication

06/19/1990

PCT

GB1988000725

Progress at the INPI

  1. Filing09/02/88
  2. Publication06/19/90
  3. Examination08/27/91
  4. Allowance10/13/93
  5. Grant05/31/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gas Services Offshore Limited

GB

Inventors

P. G. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8720663 · 09/02/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

10/13/1993

RPI 1193

Exigência - art. 36 da LPI

#6.1

01/05/1993

RPI 1153

Solicitação de exame técnico

#4.1

08/27/1991

RPI 1082

Notificação de entrada na fase nacional - PCT

#1.3

06/19/1990

RPI 1023

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