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Official data from INPI

PROCESSO DE TROCA DE CALOR E TROCADOR DE CALOR

Em AnáliseInvention Patent

Application data

Number

PI7802287

Type

Invention Patent

Filing

04/12/1977

Publication

-

Progress at the INPI

  1. Filing04/12/77
  2. Publication
  3. Examination
  4. Allowance08/17/82
  5. Grant03/29/83
  6. Terminated09/18/90

The patent was granted on 03/29/1983 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: 04/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ESMIL BV

Inventors

K. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

04/19/1988

RPI 913

20.7

04/12/1988

RPI 912

201

02/28/1984

RPI 697

201

12/27/1983

RPI 688

Pedido de licença voluntária

#17.1

07/19/1983

RPI 665

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

12/28/1982

RPI 636

Deferimento

#9.1

08/17/1982

RPI 617

Exigência - art. 36 da LPI

#6.1

12/01/1981

RPI 580

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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