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Official data from INPI

VALVULA PARA AQUECEDORES DE AGUA A GAS TIPO INSTANTANEO COM VALVULA DE SEGURANCA

Em AnáliseUtility Model
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Application data

Number

MU6200155

Type

Utility Model

Filing

02/10/1982

Publication

07/06/1982
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Progress at the INPI

  1. Filing02/10/82
  2. Publication07/06/82
  3. Examination08/31/82
  4. Refused06/16/87
  5. Grant
  6. In force

The application was refused on 06/16/1987 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/16/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TECNICO MECANICA BRISTAN S A [BR]

Inventors

H. F. (pessoa física)

Technical data

IPC Classification

F24H 9/20

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

06/16/1987

RPI 869

Petição de recurso

#12.2

03/04/1987

RPI 854

Indeferimento

#9.2

11/04/1986

RPI 837

14.1

03/11/1986

RPI 803

14.4

01/21/1986

RPI 796

14.4

08/27/1985

RPI 775

14.1

05/07/1985

RPI 759

Solicitação de exame técnico

#4.1

08/31/1982

RPI 619

Publicação antecipada

#3.2

07/06/1982

RPI 611

Pedido de patente depositado

#2.1

03/30/1982

RPI 597

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