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Official data from INPI

DISPOSITIVO DE MANUTENÇÃO DE GÁRGULA DE DISTRIBUIÇÃO DE FORNO DE CUBA E MECANISMO DE TRAÇÃO DE GÁRGULA

Prazo de SigiloInvention Patent

Application data

Number

PI8903524

Type

Invention Patent

Filing

07/11/1989

Publication

03/13/1990

Progress at the INPI

  1. Filing07/11/89
  2. Publication03/13/90
  3. Examination02/25/92
  4. Allowance03/09/93
  5. Grant10/26/93
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 09/19/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Paul Wurth S.A.

LU

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Inventors

E. L. (pessoa física)

LU

G. C. (pessoa física)

LU

P. M. (pessoa física)

LU

Technical data

IPC Classification

Priority claims

LU

87291 · 07/25/1988

LU

87380 · 11/09/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

09/19/1989

RPI 987

Carta-patente expirada

#21.1

Patente extinta em 11/07/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

10/26/1993

RPI 1195

Notificação para pagamento de retribuição

#13.1

06/29/1993

RPI 1178

Deferimento

#9.1

03/09/1993

RPI 1162

Solicitação de exame técnico

#4.1

02/25/1992

RPI 1108

Publicação do pedido de patente

#3.1

03/13/1990

RPI 1009

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