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Official data from INPI

SISTEMA DE AQUECIMENTO PARA AQUECER UM ESPAÇO

Em AnáliseInvention Patent

Application data

Number

PI8701792

Type

Invention Patent

Filing

04/14/1987

Publication

10/25/1988

Progress at the INPI

  1. Filing04/14/87
  2. Publication10/25/88
  3. Examination03/28/89
  4. Allowance01/08/91
  5. Grant08/27/91
  6. Terminated12/31/96

The patent was granted on 08/27/1991 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: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Combustion Concepts, Inc.

US

Inventors

J. T. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/28/1989

RPI 962

Publicação do pedido de patente

#3.1

10/25/1988

RPI 940

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

08/27/1991

RPI 1082

14.1

04/23/1991

RPI 1064

Deferimento

#9.1

01/08/1991

RPI 1049

Exigência - art. 36 da LPI

#6.1

05/08/1990

RPI 1017

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