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Official data from INPI

TROCADOR DE CALOR DE TUBOS LONGOS PARA VEICULOS PESADOS

Em AnáliseInvention Patent

Application data

Number

PI8306909

Type

Invention Patent

Filing

12/16/1982

Publication

07/24/1984

Progress at the INPI

  1. Filing12/16/82
  2. Publication07/24/84
  3. Examination12/11/84
  4. Allowance04/15/86
  5. Grant08/25/87
  6. Terminated11/16/88

The patent was granted on 08/25/1987 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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CHAUSSON USINES SA [FR]

Inventors

M. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

08/25/1987

RPI 879

110

06/09/1987

RPI 868

Recurso

#12.1

12/16/1986

RPI 843

Deferimento

#9.1

04/15/1986

RPI 808

Exigência - art. 36 da LPI

#6.1

07/23/1985

RPI 770

Solicitação de exame técnico

#4.1

12/11/1984

RPI 738

Publicação do pedido de patente

#3.1

07/24/1984

RPI 718

Pedido de patente depositado

#2.1

02/28/1984

RPI 697

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