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Official data from INPI

TROCADOR DE CALOR

Em AnáliseInvention Patent

Application data

Number

PI8407378

Type

Invention Patent

Filing

06/28/1984

Publication

07/14/1987

Progress at the INPI

  1. Filing06/28/84
  2. Publication07/14/87
  3. Examination11/24/87
  4. Allowance07/18/89
  5. Grant02/06/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hightech Heatexchange I Malmo AB, companhia sueca

SE

Inventors

S. S. (pessoa física)

SE

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/14/1989

RPI 995

Deferimento

#9.1

07/18/1989

RPI 978

Exigência - art. 36 da LPI

#6.1

02/28/1989

RPI 958

Solicitação de exame técnico

#4.1

11/24/1987

RPI 892

Notificação de entrada na fase nacional - PCT

#1.3

07/14/1987

RPI 873

Carta-patente expirada

#21.1

Patente extinta em 28/06/99

07/08/2008

RPI 1957

Pedido de licença compulsória

#20.1

11/10/1992

RPI 1145

20.4

11/03/1992

RPI 1144

20.7

10/27/1992

RPI 1143

Concessão da patente

#16.1

02/06/1990

RPI 1005

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