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Official data from INPI

PROCESSO PARA A PREPRAÇÃO DE UM COPOLÍMERO OLIGOMÉRICO DE UM REAGENTE ÁCIDO INSATURADO E UMA OLEFINA DE ELEVADO PESO MOLECULAR

ArquivadaInvention PatentPCT · US1989004282

Application data

Number

PI8907806

Type

Invention Patent

Filing

09/29/1989

Publication

10/22/1991

PCT

US1989004282

Progress at the INPI

  1. Filing09/29/89
  2. Publication10/22/91
  3. Abandoned07/27/93
  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: 02/12/1997. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Chevron Research And Technology Company

US

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Inventors

W. J. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

02/12/1997

RPI 1367

Arquivamento - Art. 36 §1° da LPI

#11.2

10/15/1996

RPI 1350

Exigência - art. 36 da LPI

#6.1

01/30/1996

RPI 1313

Exigência - art. 36 da LPI

#6.1

01/23/1996

RPI 1312

Solicitação de exame técnico

#4.1

07/27/1993

RPI 1182

Notificação de entrada na fase nacional - PCT

#1.3

10/22/1991

RPI 1090

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