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Official data from INPI

PROCESSO PARA PURIFICAÇÃO DE UMA CARGA DE ALIMENTAÇÃO DE HIDROCARBONETOS, E PARAFINA LINEAR

ArquivadaInvention Patent

Application data

Number

PI8904365

Type

Invention Patent

Filing

08/30/1989

Publication

04/17/1990

Progress at the INPI

  1. Filing08/30/89
  2. Publication04/17/90
  3. Abandoned02/25/92
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/06/1999. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Chemical Patents Inc

US

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Inventors

C. D. (pessoa física)

US

F. J. (pessoa física)

J. S. (pessoa física)

R. B. (pessoa física)

Technical data

IPC Classification

Priority claims

US

238.854 · 08/31/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

04/06/1999

RPI 1474

Exigência - art. 36 da LPI

#6.1

07/14/1998

RPI 1438

Solicitação de exame técnico

#4.1

02/25/1992

RPI 1108

Publicação do pedido de patente

#3.1

04/17/1990

RPI 1014

Pedido de patente depositado

#2.1

01/23/1990

RPI 1003

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