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Official data from INPI

CONJUNTO DE VÁLVULA OPERADA POR MAGNETO E MÉTODO PARA FABRICAR DITA VÁLVULA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005144

Type

Invention Patent

Filing

10/09/1990

Publication

07/23/1991

Progress at the INPI

  1. Filing10/09/90
  2. Publication07/23/91
  3. Examination10/29/91
  4. Allowance11/23/93
  5. Grant05/31/94
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Robertshaw do Brasil S/A

RS, BR

Inventors

R. K. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/10/2005

06/01/2010

RPI 2056

Concessão da patente

#16.1

05/31/1994

RPI 1226

Deferimento

#9.1

11/23/1993

RPI 1199

Exigência - art. 36 da LPI

#6.1

04/20/1993

RPI 1168

Solicitação de exame técnico

#4.1

10/29/1991

RPI 1091

Publicação antecipada

#3.2

07/23/1991

RPI 1077

Pedido de patente depositado

#2.1

04/16/1991

RPI 1063

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