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Official data from INPI

PROCESSO PARA FORMAÇÃO DE PRODUTOS DE CARVÃO QUE TEM PROPRIEDADES MELHORADAS POR HIDRÓLISE, POR OXIGÊNIO ACILAÇÃO, E, CARVÃO ENDURECIDO.

ArquivadaInvention Patent

Application data

Number

PI7908178

Type

Invention Patent

Filing

12/13/1979

Publication

-

Progress at the INPI

  1. Filing12/13/79
  2. Publication
  3. Examination08/17/82
  4. Allowance05/14/85
  5. Abandoned
  6. In force

The application was allowed on 05/14/1985 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 07/08/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

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Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

07/08/1986

RPI 820

Notificação para pagamento de retribuição

#13.1

09/03/1985

RPI 776

Deferimento

#9.1

05/14/1985

RPI 760

Exigência - art. 36 da LPI

#6.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

08/17/1982

RPI 617

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