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Official data from INPI

TROCADOR DE CALOR

ConcedidaInvention Patent

Application data

Number

PI8407039

Type

Invention Patent

Filing

08/22/1984

Publication

07/30/1985

Progress at the INPI

  1. Filing08/22/84
  2. Publication07/30/85
  3. Examination09/01/87
  4. Allowance12/06/88
  5. Grant09/26/89
  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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. O. (pessoa física)

SE

Inventors

K. O. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8304626-8 · 08/26/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/06/1988

RPI 946

Exigência - art. 36 da LPI

#6.1

05/17/1988

RPI 917

Solicitação de exame técnico

#4.1

09/01/1987

RPI 880

Notificação de entrada na fase nacional - PCT

#1.3

07/30/1985

RPI 771

Carta-patente expirada

#21.1

Patente extinta em 22/08/99

07/08/2008

RPI 1957

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