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Official data from INPI

DISPOSITIVO GERADOR DE GÁS

PublicadaInvention Patent

Application data

Number

PI8804106

Type

Invention Patent

Filing

08/12/1988

Publication

05/02/1989

Progress at the INPI

  1. Filing08/12/88
  2. Publication05/02/89
  3. Examination08/13/91
  4. Allowance06/13/95
  5. Grant12/26/95
  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: 05/02/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. C. (pessoa física)

FR

L`Air Liquide, Societe Anonyme Pour L`Etude Et L`Exploitation Des Procedes -

FR

L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude

FR

Inventors

F. M. (pessoa física)

US

M. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

085.888 · 08/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/02/1989

RPI 967

Pedido de patente depositado

#2.1

01/10/1989

RPI 951

Carta-patente expirada

#21.1

Patente extinta em 12/08/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

12/26/1995

RPI 1308

Notificação para pagamento de retribuição

#13.1

10/24/1995

RPI 1299

Deferimento

#9.1

06/13/1995

RPI 1280

Exigência - art. 36 da LPI

#6.1

01/10/1995

RPI 1258

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

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