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Official data from INPI

PROCESSO PARA GASEIFICACAO DE LICOR NEGRO AQUOSO

ConcedidaInvention Patent

Application data

Number

PI8401815

Type

Invention Patent

Filing

04/18/1983

Publication

11/27/1984

Progress at the INPI

  1. Filing04/18/83
  2. Publication11/27/84
  3. Examination04/29/86
  4. Allowance11/29/88
  5. Grant09/26/89
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROCKWELL INTERNATIONAL CORP [US]

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Inventors

K. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

11/29/1988

RPI 945

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

Solicitação de exame técnico

#4.1

04/29/1986

RPI 810

Publicação do pedido de patente

#3.1

11/27/1984

RPI 736

Pedido de patente depositado

#2.1

06/26/1984

RPI 714

Carta-patente expirada

#21.1

Patente extinta em 17/04/99

08/19/2008

RPI 1963

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