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Official data from INPI

ELEMENTO EM OU PARA UM PERMUTADOR DE CALOR

Em AnáliseInvention Patent

Application data

Number

PI7700351

Type

Invention Patent

Filing

01/22/1976

Publication

-

Progress at the INPI

  1. Filing01/22/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant02/22/83
  6. Terminated12/08/87

The patent was granted on 02/22/1983 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: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. J. (pessoa física)

Inventors

O. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

01/18/1983

RPI 639

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

110

09/21/1982

RPI 622

Recurso

#12.1

11/17/1981

RPI 578

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