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Official data from INPI

DISPOSITIVO DE REFRIGERACAO PARA UM QUEIMADOR DE CARVAO

Em AnáliseInvention Patent

Application data

Number

PI7902332

Type

Invention Patent

Filing

04/18/1978

Publication

-

Progress at the INPI

  1. Filing04/18/78
  2. Publication
  3. Examination11/10/81
  4. Allowance05/03/83
  5. Grant11/29/83
  6. Terminated05/17/88

The patent was granted on 11/29/1983 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RUHRKOHLE AG

Inventors

B. W. (pessoa física)

G. H. (pessoa física)

J. J. (pessoa física)

S. A. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/20/1983

RPI 674

Deferimento

#9.1

05/03/1983

RPI 654

8.1

03/22/1983

RPI 648

8.1

03/15/1983

RPI 647

Exigência - art. 36 da LPI

#6.1

05/18/1982

RPI 604

Solicitação de exame técnico

#4.1

11/10/1981

RPI 577

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