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Official data from INPI

COMPOSIÇÃO ÚTIL COMO ADITIVO PARA ÓLEO, COMPOSIÇÃO DE ÓLEO, PROCESSO PARA APERFEIÇOAR A ESTABILIDADE DA VISCOSIDADE DE UM CONCENTRADO DE ADITIVO DE ÓLEO E COPOLÍMERO DE ETILENO ENXERTADO

PublicadaInvention Patent

Application data

Number

PI8802921

Type

Invention Patent

Filing

06/15/1988

Publication

01/03/1989

Progress at the INPI

  1. Filing06/15/88
  2. Publication01/03/89
  3. Abandoned04/02/91
  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.

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Latest action published by the INPI: 01/03/1989. 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

Technical data

IPC Classification

Priority claims

US

063,144 · 06/16/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/03/1989

RPI 950

Pedido de patente depositado

#2.1

11/08/1988

RPI 942

Republicação - classificação IPC

#15.11

02/12/1997

RPI 1367

Arquivamento - Art. 36 §1° da LPI

#11.2

04/09/1996

RPI 1323

Exigência - art. 36 da LPI

#6.1

06/27/1995

RPI 1282

Solicitação de exame técnico

#4.1

04/02/1991

RPI 1061

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