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Official data from INPI

DISPOSIÇÃO CONSTRUTIVA INTRODUZIDA EM TROCADO DE CALOR ÁGUATUBULAR

Prazo de SigiloUtility Model

Application data

Number

MU6900218

Type

Utility Model

Filing

02/03/1989

Publication

11/20/1990

Progress at the INPI

  1. Filing02/03/89
  2. Publication11/20/90
  3. Examination02/05/91
  4. Allowance06/01/93
  5. Grant02/16/94
  6. Terminated12/17/96

The patent was granted on 02/16/1994 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/04/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Arauterm Equipamentos Termo Metalúrgicos Ltda

RS, BR

Inventors

L. A. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/04/1989

RPI 963

Anuidade - prazo legal encerrado

#18.2

12/17/1996

RPI 1359

Concessão da patente

#16.1

02/16/1994

RPI 1211

Notificação para pagamento de retribuição

#13.1

10/13/1993

RPI 1193

Deferimento

#9.1

06/01/1993

RPI 1174

Solicitação de exame técnico

#4.1

02/05/1991

RPI 1053

Publicação do pedido de patente

#3.1

11/20/1990

RPI 1042

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