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Official data from INPI

VÁLVULA DE NÍVEL PARA ALTA PRESSÃO.

ConcedidaUtility Model

Application data

Number

MU6400305

Type

Utility Model

Filing

02/28/1984

Publication

10/08/1985

Progress at the INPI

  1. Filing02/28/84
  2. Publication10/08/85
  3. Examination06/03/86
  4. Allowance02/09/88
  5. Grant09/27/88
  6. Expired10/04/94

The letters patent expired on 10/04/1994: 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: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. G. (pessoa física)

Inventors

G. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1988

RPI 936

Notificação para pagamento de retribuição

#13.1

06/07/1988

RPI 920

Deferimento

#9.1

02/09/1988

RPI 903

Retificação

#15.6

12/01/1987

RPI 893

Alteração de numeração

#15.1

09/22/1987

RPI 883

Exigência - art. 36 da LPI

#6.1

04/14/1987

RPI 860

Solicitação de exame técnico

#4.1

06/03/1986

RPI 815

Publicação do pedido de patente

#3.1

10/08/1985

RPI 781

Pedido de patente depositado

#2.1

05/15/1984

RPI 708

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

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