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Official data from INPI

PROCESSO E DISPOSITIVO PARA PERMUTADOR DE CALOR ENTRE FLUIDOS

Em AnáliseInvention Patent

Application data

Number

PI7703202

Type

Invention Patent

Filing

05/18/1976

Publication

-

Progress at the INPI

  1. Filing05/18/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Terminated05/10/88

The patent was granted and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/10/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. M. (pessoa física)

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/10/1988

RPI 916

Cessão de direito de exploração

#22.1

12/04/1984

RPI 737

Notificação para pagamento de retribuição

#13.1

01/26/1982

RPI 588

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