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Official data from INPI

CONSTRUÇÃO E USO DE DISPERSOR DE POLÍMEROS DE ALTO E BAIXO PESO MOLECULAR

ArquivadaInvention Patent

Application data

Number

PI9105485

Type

Invention Patent

Filing

12/18/1991

Publication

04/21/1992

Progress at the INPI

  1. Filing12/18/91
  2. Publication04/21/92
  3. Abandoned06/16/92
  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: 07/23/2002. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Betzdearborn Inc.

US

Grace Aquatec Química Ltda

US

W.R. Grace & Co. - Conn

US

See this company's full portfolio

Inventors

A. J. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

07/23/2002

RPI 1646

Exigência - art. 36 da LPI

#6.1

01/22/2002

RPI 1620

Transferência deferida

#25.1

Transferido de: W.R. Grace & CO.-CONN.

06/22/1999

RPI 1485

Alteração de sede deferida

#25.7

Alterada a sede conforme solicitado na petição nº 007824/RJ de 02/04/98.

03/16/1999

RPI 1471

14.1

11/28/1995

RPI 1304

14.1

07/06/1993

RPI 1179

14.1

06/29/1993

RPI 1178

Solicitação de exame técnico

#4.1

06/16/1992

RPI 1124

Publicação antecipada

#3.2

04/21/1992

RPI 1116

Pedido de patente depositado

#2.1

02/04/1992

RPI 1105

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