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Official data from INPI

COMPOSIÇÃO CARBONÁCEA E PROCESSO PARA SUA PREPARAÇÃO.

ConcedidaInvention Patent
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Application data

Number

PI7803453

Type

Invention Patent

Filing

05/30/1978

Publication

-
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Progress at the INPI

  1. Filing05/30/78
  2. Publication
  3. Examination
  4. Allowance06/05/84
  5. Grant12/26/84
  6. Terminated09/18/90

The patent was granted on 12/26/1984 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: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AB SCANIA INVCENTOR

Inventors

L. J. (pessoa física)

S. O. (pessoa física)

W. A. (pessoa física)

Technical data

IPC Classification

C10L 1/00C10L 1/32

Priority claims

SE

P7706315-4 · 05/31/1977

SE

P7805632-2 · 05/17/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/05/1984

RPI 711

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

Exigência - art. 36 da LPI

#6.1

11/09/1982

RPI 629

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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