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Official data from INPI

VÁLVULA DE CONTROLE

Arquivada/ExtintaInvention Patent

Application data

Number

PI9102943

Type

Invention Patent

Filing

07/11/1991

Publication

02/11/1992

Progress at the INPI

  1. Filing07/11/91
  2. Publication02/11/92
  3. Examination03/08/94
  4. Allowance01/30/96
  5. Grant12/31/96
  6. Expired06/29/10

The letters patent expired on 06/29/2010: 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: 06/29/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Neles-Jamesbury Oy

FI

Inventors

J. P. (pessoa física)

FI

R. R. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

903583 · 07/16/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 11/07/2006

06/29/2010

RPI 2060

Concessão da patente

#16.1

12/31/1996

RPI 1361

Notificação para pagamento de retribuição

#13.1

07/09/1996

RPI 1336

Deferimento

#9.1

01/30/1996

RPI 1313

Solicitação de exame técnico

#4.1

03/08/1994

RPI 1214

Publicação do pedido de patente

#3.1

02/11/1992

RPI 1106

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