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Official data from INPI

COMPOSIÇÃO DE POLÍMERO DE POLICETONA E PROCESSO PARA SUA PREPARAÇÃO

PublicadaInvention Patent

Application data

Number

PI8901976

Type

Invention Patent

Filing

04/27/1989

Publication

12/05/1989

Progress at the INPI

  1. Filing04/27/89
  2. Publication12/05/89
  3. Abandoned12/24/91
  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.

Talk to a specialist

Latest action published by the INPI: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

R. L. (pessoa física)

US

W. G. (pessoa física)

US

W. H. (pessoa física)

Technical data

IPC Classification

Priority claims

US

187,790 · 04/29/1988

US

278,098 · 11/30/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/05/1989

RPI 998

Pedido de patente depositado

#2.1

06/06/1989

RPI 972

Republicação - classificação IPC

#15.11

02/12/1997

RPI 1367

Arquivamento - Art. 36 §1° da LPI

#11.2

11/07/1995

RPI 1301

Exigência - art. 36 da LPI

#6.1

02/14/1995

RPI 1263

Solicitação de exame técnico

#4.1

12/24/1991

RPI 1099

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