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Official data from INPI

TROCADOR DE CALOR DE MONTAGEM MECANICA DO TIPO COM TUBOS E ALETAS

ConcedidaInvention Patent

Application data

Number

PI8107630

Type

Invention Patent

Filing

11/24/1980

Publication

08/24/1982

Progress at the INPI

  1. Filing11/24/80
  2. Publication08/24/82
  3. Examination10/02/84
  4. Allowance04/12/88
  5. Grant09/27/88
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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

CHAUSSON USINES SA [FR]

Inventors

M. P. (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

07/26/1988

RPI 927

Deferimento

#9.1

04/12/1988

RPI 912

Solicitação de exame técnico

#4.1

10/02/1984

RPI 728

Publicação do pedido de patente

#3.1

08/24/1982

RPI 618

Pedido de patente depositado

#2.1

01/05/1982

RPI 585

Carta-patente expirada

#21.1

Patente extinta em 24/11/96

08/19/2008

RPI 1963

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