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Official data from INPI

PERMUTADOR DE CALOR

ConcedidaInvention Patent

Application data

Number

PI8008646

Type

Invention Patent

Filing

04/23/1979

Publication

-

Progress at the INPI

  1. Filing04/23/79
  2. Publication
  3. Examination04/27/82
  4. Allowance01/10/84
  5. Grant12/26/84
  6. Terminated08/09/94

The patent was granted on 12/26/1984 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: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. K. (pessoa física)

Inventors

H. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

110

09/25/1984

RPI 727

Recurso

#12.1

05/02/1984

RPI 706

Deferimento

#9.1

01/10/1984

RPI 690

Exigência - art. 36 da LPI

#6.1

08/09/1983

RPI 668

Solicitação de exame técnico

#4.1

04/27/1982

RPI 601

Anuidade - prazo legal encerrado

#18.2

08/09/1994

RPI 1236

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