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Official data from INPI

VÁLVULA REGULADORA DE PRESSÃO PARA PANELA DE PRESSÀO

Em AnáliseUtility Model

Application data

Number

MU6602460

Type

Utility Model

Filing

12/15/1986

Publication

07/05/1988

Progress at the INPI

  1. Filing12/15/86
  2. Publication07/05/88
  3. Examination01/17/89
  4. Allowance08/07/90
  5. Grant02/26/91
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 01/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALCAN BRASIL [BR]

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Inventors

F. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/17/1989

RPI 952

Publicação do pedido de patente

#3.1

07/05/1988

RPI 924

Pedido de patente depositado

#2.1

05/05/1987

RPI 863

Carta-patente expirada

#21.1

Patente extinta em 15/12/1996

07/01/2008

RPI 1956

Republicação - classificação IPC

#15.11

04/02/1991

RPI 1061

Concessão da patente

#16.1

02/26/1991

RPI 1056

Notificação para pagamento de retribuição

#13.1

11/20/1990

RPI 1042

Deferimento

#9.1

08/07/1990

RPI 1027

Exigência - art. 36 da LPI

#6.1

01/16/1990

RPI 1002

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