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Official data from INPI

TROCADOR DE CALOR

DeferidaInvention Patent

Application data

Number

PI8606219

Type

Invention Patent

Filing

12/16/1986

Publication

09/29/1987

Progress at the INPI

  1. Filing12/16/86
  2. Publication09/29/87
  3. Examination01/12/88
  4. Allowance09/12/89
  5. Grant05/29/90
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

DE

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Inventors

H. N. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

DE

P 35 44 517.3 · 12/17/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/12/1989

RPI 986

Solicitação de exame técnico

#4.1

01/12/1988

RPI 899

Publicação do pedido de patente

#3.1

09/29/1987

RPI 884

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Carta-patente expirada

#21.1

Patente extinta em 16/12/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

01/16/1990

RPI 1002

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