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Official data from INPI

APERFEIÇOAMENTOS INTRODUZIDOS EM ELETROVALVULA

PublicadaInvention Patent

Application data

Number

PI8900029

Type

Invention Patent

Filing

01/02/1989

Publication

05/16/1989

Progress at the INPI

  1. Filing01/02/89
  2. Publication05/16/89
  3. Examination02/06/90
  4. Allowance06/01/93
  5. Grant04/26/94
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Vdo Comercial Ltda

SP, BR

V.D.O. Kienzle Instrumentos Ltda

SP, BR

Inventors

F. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

05/16/1989

RPI 969

Pedido de patente depositado

#2.1

02/14/1989

RPI 956

Carta-patente expirada

#21.1

Patente extinta em 02/01/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

04/26/1994

RPI 1221

Notificação para pagamento de retribuição

#13.1

10/13/1993

RPI 1193

14.4

06/15/1993

RPI 1176

Deferimento

#9.1

06/01/1993

RPI 1174

Exigência - art. 36 da LPI

#6.1

05/12/1992

RPI 1119

14.1

12/04/1990

RPI 1044

Solicitação de exame técnico

#4.1

02/06/1990

RPI 1005

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