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Official data from INPI

CAIXA DE SUCÇÃO

Prazo de SigiloInvention Patent

Application data

Number

PI8802806

Type

Invention Patent

Filing

06/06/1988

Publication

01/23/1990

Progress at the INPI

  1. Filing06/06/88
  2. Publication01/23/90
  3. Examination12/17/91
  4. Allowance05/11/93
  5. Grant04/26/94
  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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J M Voith GmbH

DE

J.M. Voith GmbH

DE

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Inventors

N. S. (pessoa física)

DE

O. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 37 20 649.4 · 06/23/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/01/1988

RPI 941

Carta-patente expirada

#21.1

Patente extinta em 06/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/26/1994

RPI 1221

Notificação para pagamento de retribuição

#13.1

09/21/1993

RPI 1190

Deferimento

#9.1

05/11/1993

RPI 1171

Solicitação de exame técnico

#4.1

12/17/1991

RPI 1098

Publicação do pedido de patente

#3.1

01/23/1990

RPI 1003

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