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Official data from INPI

COMPOSIÇÃO PARA PREPARAR UM ARTIGO POLIMÉRICO ESPUMADO MOLDADO E PROCESSO PARA A COMPATIBILIZAÇÃO DE UM POLIAL DE PESO MOLECULAR RELATIVAMENTE ALTO

ArquivadaInvention Patent

Application data

Number

PI9105449

Type

Invention Patent

Filing

12/09/1991

Publication

08/25/1992

Progress at the INPI

  1. Filing12/09/91
  2. Publication08/25/92
  3. Abandoned08/16/94
  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: 03/20/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

L. W. (pessoa física)

US

R. C. (pessoa física)

US

Technical data

Priority claims

US

626097 · 12/11/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C08G 18/14.

03/20/2018

RPI 2463

Arquivamento - Art. 36 §1° da LPI

#11.2

11/16/1999

RPI 1506

Exigência - art. 36 da LPI

#6.1

11/10/1998

RPI 1453

Solicitação de exame técnico

#4.1

08/16/1994

RPI 1237

Publicação do pedido de patente

#3.1

08/25/1992

RPI 1134

Pedido de patente depositado

#2.1

02/04/1992

RPI 1105

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