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Official data from INPI

CATALISADOR E PROCESSO PARA REFORMAR FRACAO DE NAFTA POR CATALISE

ConcedidaInvention Patent

Application data

Number

PI7902106

Type

Invention Patent

Filing

04/10/1978

Publication

-

Progress at the INPI

  1. Filing04/10/78
  2. Publication
  3. Examination02/02/82
  4. Allowance06/26/84
  5. Grant02/26/85
  6. Expired06/21/94

The letters patent expired on 06/21/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ENGELHARD MIN & CHEM

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Inventors

G. J. (pessoa física)

Y. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

06/26/1984

RPI 714

Exigência - art. 36 da LPI

#6.1

12/06/1983

RPI 685

14.1

07/20/1982

RPI 613

Solicitação de exame técnico

#4.1

02/02/1982

RPI 589

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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