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Official data from INPI

PRODUTO DE REAÇÃO SOLÚVEL EM ÓLEO, UTILIZÁVEL COMO APERFEIÇOADOR DE ÍNDICE DE VISCOSIDADE, COMPOSIÇÃO DE ÓLEO LUBRIFICANTE, COMPOSIÇÃO OLEAGINOSA E PROCESSO PARA PREPARAR DISPERSANTE-APERFEIÇOADOR DE I V

ArquivadaInvention Patent

Application data

Number

PI8905789

Type

Invention Patent

Filing

11/14/1989

Publication

06/12/1990

Progress at the INPI

  1. Filing11/14/89
  2. Publication06/12/90
  3. Abandoned05/26/92
  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: 08/06/1996. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Chemical Patents, Inc

US

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Inventors

D. C. (pessoa física)

US

F. C. (pessoa física)

US

Technical data

Priority claims

US

270,697 · 11/14/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

08/06/1996

RPI 1340

Exigência - art. 36 da LPI

#6.1

10/31/1995

RPI 1300

Solicitação de exame técnico

#4.1

05/26/1992

RPI 1121

Publicação do pedido de patente

#3.1

06/12/1990

RPI 1022

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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