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Official data from INPI

CLASSIFICADOR

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9003471

Type

Invention Patent

Filing

07/12/1990

Publication

08/27/1991
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Progress at the INPI

  1. Filing07/12/90
  2. Publication08/27/91
  3. Examination02/22/94
  4. Allowance03/07/95
  5. Grant11/28/95
  6. Expired05/25/10

The letters patent expired on 05/25/2010: 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: 05/25/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. M. Voith GmbH

DE

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Inventors

P. S. (pessoa física)

DE

R. R. (pessoa física)

DE

Technical data

IPC Classification

B07B 1/08

Priority claims

DE

P 39 25 020.2 · 07/28/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 12/07/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

11/28/1995

RPI 1304

Notificação para pagamento de retribuição

#13.1

08/08/1995

RPI 1288

Deferimento

#9.1

03/07/1995

RPI 1266

Solicitação de exame técnico

#4.1

02/22/1994

RPI 1212

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

01/22/1991

RPI 1051

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