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Official data from INPI

PROCESSO,APARELHO E SISTEMA PARA AQUECIMENTO DE MATERIAL COM CIRCULACAO DE GAS

Em AnáliseInvention Patent

Application data

Number

PI7805353

Type

Invention Patent

Filing

08/19/1977

Publication

-

Progress at the INPI

  1. Filing08/19/77
  2. Publication
  3. Examination
  4. Allowance06/22/82
  5. Grant01/25/83
  6. Terminated06/14/88

The patent was granted on 01/25/1983 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BBC BROWN BOVERI & CIE

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Inventors

H. O. (pessoa física)

R. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

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