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Official data from INPI

TROCACOR DE CALOR TROCADOR DE CALOR

Arquivada/ExtintaInvention PatentPCT · SE1988000070

Application data

Number

PI8807378

Type

Invention Patent

Filing

02/18/1988

Publication

05/15/1990

PCT

SE1988000070

Progress at the INPI

  1. Filing02/18/88
  2. Publication05/15/90
  3. Examination10/16/90
  4. Allowance06/04/91
  5. Grant03/31/92
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. A. (pessoa física)

SE

Inventors

S. S. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8700773-8 · 02/24/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/02/2003

09/02/2008

RPI 1965

Pedido de licença compulsória

#20.1

03/23/1993

RPI 1164

20.4

03/16/1993

RPI 1163

Concessão da patente

#16.1

03/31/1992

RPI 1113

Notificação para pagamento de retribuição

#13.1

10/01/1991

RPI 1087

Deferimento

#9.1

06/04/1991

RPI 1070

Solicitação de exame técnico

#4.1

10/16/1990

RPI 1037

Notificação de entrada na fase nacional - PCT

#1.3

05/15/1990

RPI 1018

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