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Official data from INPI

PROCESSO PARA SUPRIMENTO DE CARLOR EM UMA RETORTA PARA RECUPERAÇÃO DE ÓLEO DE SÓLIDAS POR AQUECIMENTO DIRETO PARCIAL DE GASES DE COMBUSTÃO IN SITU E AR DE COMBUSTÃO SEM USO DE COMBUSTÍVEL SUPLEMENTAR.

ArquivadaInvention Patent

Application data

Number

PI8301112

Type

Invention Patent

Filing

03/07/1983

Publication

11/22/1983

Progress at the INPI

  1. Filing03/07/83
  2. Publication11/22/83
  3. Examination03/11/86
  4. Allowance06/14/88
  5. Abandoned
  6. In force

The application was allowed on 06/14/1988 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: 12/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

See this company's full portfolio

Inventors

B. E. (pessoa física)

G. C. (pessoa física)

Technical data

IPC Classification

Priority claims

US

355,850 · 03/08/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

12/12/1989

RPI 999

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Republicação - classificação IPC

#15.11

08/18/1987

RPI 878

Exigência - art. 36 da LPI

#6.1

05/19/1987

RPI 865

Solicitação de exame técnico

#4.1

03/11/1986

RPI 803

Publicação do pedido de patente

#3.1

11/22/1983

RPI 683

Pedido de patente depositado

#2.1

04/19/1983

RPI 652

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