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Official data from INPI

DISPOSITIVO DE SEGURANÇA APLICÁVEL EM PANELAS DE PRESSÃO

ConcedidaInvention Patent

Application data

Number

PI8401879

Type

Invention Patent

Filing

04/24/1984

Publication

11/26/1985

Progress at the INPI

  1. Filing04/24/84
  2. Publication11/26/85
  3. Examination11/24/87
  4. Allowance01/24/89
  5. Grant09/26/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALCAN BRASIL [BR]

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Inventors

P. S. (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

05/30/1989

RPI 971

Deferimento

#9.1

01/24/1989

RPI 953

Exigência - art. 36 da LPI

#6.1

10/18/1988

RPI 939

Solicitação de exame técnico

#4.1

11/24/1987

RPI 892

Publicação do pedido de patente

#3.1

11/26/1985

RPI 788

Pedido de patente depositado

#2.1

07/03/1984

RPI 715

Carta-patente expirada

#21.1

Patente extinta em 24/04/99

07/08/2008

RPI 1957

20.7

06/23/1992

RPI 1125

20.7

11/05/1991

RPI 1092

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