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Official data from INPI

Intercambiador de calor.

ConcedidaInvention Patent

Application data

Number

PI8105385

Type

Invention Patent

Filing

08/24/1981

Publication

05/11/1982

Progress at the INPI

  1. Filing08/24/81
  2. Publication05/11/82
  3. Examination05/15/84
  4. Allowance12/11/84
  5. Grant05/28/85
  6. Terminated02/04/92

The patent was granted on 05/28/1985 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. A. (pessoa física)

SE

Inventors

D. J. (pessoa física)

Technical data

IPC Classification

Priority claims

SE

8006020-5 · 08/28/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/11/1984

RPI 738

Solicitação de exame técnico

#4.1

05/15/1984

RPI 708

Publicação do pedido de patente

#3.1

05/11/1982

RPI 603

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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