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Official data from INPI

PROCESSO PARA EXTRAÇÃO DE ÓLEO DE XISTO DE PETRÓLEO.

ArquivadaInvention Patent

Application data

Number

PI8306004

Type

Invention Patent

Filing

10/31/1983

Publication

06/05/1984

Progress at the INPI

  1. Filing10/31/83
  2. Publication06/05/84
  3. Examination05/07/85
  4. Allowance02/04/86
  5. Abandoned
  6. In force

The application was allowed on 02/04/1986 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: 11/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

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Inventors

K. W. (pessoa física)

Technical data

IPC Classification

Priority claims

US

437.908 · 11/01/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 38 §2° da LPI

#11.4

11/25/1986

RPI 840

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/04/1986

RPI 798

Solicitação de exame técnico

#4.1

05/07/1985

RPI 759

Publicação do pedido de patente

#3.1

06/05/1984

RPI 711

Pedido de patente depositado

#2.1

01/17/1984

RPI 691

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