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Official data from INPI

DISPOSIÇÃO CONSTRUTIVA DE VÁLVULA DE DESCARGA POR PRESSÃO.

IndeferidaUtility Model

Application data

Number

MU6400066

Type

Utility Model

Filing

01/19/1984

Publication

08/27/1985

Progress at the INPI

  1. Filing01/19/84
  2. Publication08/27/85
  3. Examination05/12/87
  4. Allowance06/26/90
  5. Grant10/30/90
  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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rost do Brasil Metais Sanitários Ltda

SC, BR

Inventors

I. D. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

09/05/1989

RPI 985

Pedido de certificado de adição de invenção

#5.1

09/29/1987

RPI 884

Solicitação de exame técnico

#4.1

05/12/1987

RPI 864

Publicação do pedido de patente

#3.1

08/27/1985

RPI 775

Pedido de patente depositado

#2.1

04/10/1984

RPI 703

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

Concessão da patente

#16.1

10/30/1990

RPI 1039

100

06/26/1990

RPI 1024

Petição de recurso

#12.2

04/10/1990

RPI 1013

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