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Official data from INPI

DISPOSITIVO PARA UTILIZAÇÃO COM PERMUTADORES DE CALOR.

Em AnáliseInvention Patent

Application data

Number

PI7800223

Type

Invention Patent

Filing

01/13/1978

Publication

-

Progress at the INPI

  1. Filing01/13/78
  2. Publication
  3. Examination
  4. Allowance04/06/82
  5. Grant
  6. Terminated06/14/88

The patent was granted 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. 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

06/14/1988

RPI 921

Notificação para pagamento de retribuição

#13.1

07/27/1982

RPI 614

15.0

04/27/1982

RPI 601

Deferimento

#9.1

04/06/1982

RPI 598

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