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Official data from INPI

COMPOSIÇÃO DE MATÉRIA, FLUÍDO AQUOSO E PROCESSO PARA REDUZIR VISCOSIDADE DE FLUÍDO AQUOSO

ArquivadaInvention Patent

Application data

Number

PI9200124

Type

Invention Patent

Filing

01/16/1992

Publication

10/06/1992

Progress at the INPI

  1. Filing01/16/92
  2. Publication10/06/92
  3. Abandoned11/22/94
  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: 11/07/2000. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhodia Inc

US

Rhone-Poulenc Inc.

US

Stein, Hall & Co. Inc.

US

See this company's full portfolio

Inventors

M. P. (pessoa física)

US

M. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

643.348 · 01/22/1991

Abstract

Derivados triplos de poligalactomanana isto é éter dialquilaminoalquila-éter hidroxialquila-éter de cadeia alifática longe de poligalactomanana são úteis como agentes espessadores para fluidos aquosos.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

11/07/2000

RPI 1557

Exigência - art. 36 da LPI

#6.1

10/13/1999

RPI 1501

Transferência deferida

#25.1

Transferido de: Rhone-Poulenc, INC.

08/10/1999

RPI 1492

Transferência deferida

#25.1

Transferido Por Fusão de: Stein Hall & CO. INC.

06/29/1999

RPI 1486

Solicitação de exame técnico

#4.1

11/22/1994

RPI 1251

Publicação do pedido de patente

#3.1

10/06/1992

RPI 1140

Pedido de patente depositado

#2.1

02/18/1992

RPI 1107

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