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Official data from INPI

BOCAL DE DESCARGA PARA TAMBORES CENTRÍFUGOS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003264

Type

Invention Patent

Filing

07/09/1990

Publication

08/27/1991

Progress at the INPI

  1. Filing07/09/90
  2. Publication08/27/91
  3. Examination12/10/91
  4. Allowance03/15/94
  5. Grant11/29/94
  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.

Talk to a specialist

Latest action published by the INPI: 05/25/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Wesftalia Separator AG

DE

Wesftalia Separator AG.

DE

Inventors

D. S. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 39 22 619.0 · 07/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/07/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

06/28/1994

RPI 1230

Deferimento

#9.1

03/15/1994

RPI 1215

Solicitação de exame técnico

#4.1

12/10/1991

RPI 1097

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

01/08/1991

RPI 1049

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