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Official data from INPI

PERMUTADOR TÉRMICO

Em AnáliseInvention Patent

Application data

Number

PI8202346

Type

Invention Patent

Filing

04/23/1982

Publication

04/05/1983

Progress at the INPI

  1. Filing04/23/82
  2. Publication04/05/83
  3. Examination02/20/85
  4. Allowance07/08/86
  5. Grant03/17/87
  6. Terminated10/16/90

The patent was granted on 03/17/1987 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Esmil B.V.

NL

Inventors

D. K. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

NL

8102024 · 04/24/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

06/21/1988

RPI 922

Concessão da patente

#16.1

03/17/1987

RPI 856

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

08/06/1985

RPI 772

Solicitação de exame técnico

#4.1

02/20/1985

RPI 748

Publicação do pedido de patente

#3.1

04/05/1983

RPI 650

Pedido de patente depositado

#2.1

06/15/1982

RPI 608

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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