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Official data from INPI

APERFEICOAMENTO EM INSTALACAO E EM PROCESSO DE PRE-AQUECIMENTO DE CARVAO

Em AnáliseInvention Patent

Application data

Number

PI7800352

Type

Invention Patent

Filing

01/24/1977

Publication

-

Progress at the INPI

  1. Filing01/24/77
  2. Publication
  3. Examination
  4. Allowance
  5. Grant10/19/82
  6. Terminated11/16/88

The patent was granted on 10/19/1982 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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. F. (pessoa física)

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Inventors

D. E. (pessoa física)

P. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

10/19/1982

RPI 626

Notificação para pagamento de retribuição

#13.1

06/08/1982

RPI 607

Exigência - art. 36 da LPI

#6.1

02/16/1982

RPI 591

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