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Official data from INPI

COLUNA BAROMETRICA PARA CONDENSACAO DE VAPOR

ConcedidaUtility Model

Application data

Number

MU6401229

Type

Utility Model

Filing

08/01/1984

Publication

10/16/1984

Progress at the INPI

  1. Filing08/01/84
  2. Publication10/16/84
  3. Examination01/02/85
  4. Allowance03/01/88
  5. Grant09/27/88
  6. Expired11/22/94

The letters patent expired on 11/22/1994: 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

RUBENS COELHO DE SOUZA [BR]

Inventors

S. [. (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

06/21/1988

RPI 922

Deferimento

#9.1

03/01/1988

RPI 906

Retificação

#15.6

12/08/1987

RPI 894

Retificação

#15.3

08/25/1987

RPI 879

Exigência - art. 36 da LPI

#6.1

09/23/1986

RPI 831

Solicitação de exame técnico

#4.1

01/02/1985

RPI 741

Publicação antecipada

#3.2

10/16/1984

RPI 730

Pedido de patente depositado

#2.1

10/09/1984

RPI 729

Carta-patente expirada

#21.1

11/22/1994

RPI 1251

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