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Official data from INPI

REFINAÇÃO COM SOLVENTE DE CARVÃO USANDO-SE SOLVENTE ENRIQUECIDO COM OCTAIDROFENANTRENO E RECICLAGEM DE MINERAIS DE CARVÃO.

ArquivadaInvention Patent

Application data

Number

PI8105664

Type

Invention Patent

Filing

01/02/1981

Publication

12/15/1981

Progress at the INPI

  1. Filing01/02/81
  2. Publication12/15/81
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 01/02/1981 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/18/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gulf Research & Development Company

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Inventors

M. H. (pessoa física)

T. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

118.860 · 02/05/1980

US

PCT/81/00004 · 01/02/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

10/18/1983

RPI 678

Notificação de entrada na fase nacional - PCT

#1.3

12/15/1981

RPI 582

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