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Official data from INPI

PROCESSO PARA PRODUÇÃO DE UM POLISSACARÍDEO SOLÚVEL EM ÁGUA, E COMPOSIÇÃO DE LÁTEX.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000379

Type

Invention Patent

Filing

01/30/1990

Publication

12/04/1990

Progress at the INPI

  1. Filing01/30/90
  2. Publication12/04/90
  3. Examination04/27/93
  4. Allowance03/30/99
  5. Grant08/10/99
  6. Expired01/02/13

The letters patent expired on 01/02/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Union Carbide Chemicals and Plastics Company Inc.

US

See this company's full portfolio

Inventors

E. I. (pessoa física)

US

G. I. (pessoa física)

US

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

304.258 · 01/31/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 30/01/2010

01/02/2013

RPI 2191

Concessão da patente

#16.1

08/10/1999

RPI 1492

Deferimento

#9.1

03/30/1999

RPI 1473

Exigência - art. 36 da LPI

#6.1

01/16/1996

RPI 1311

Exigência - art. 36 da LPI

#6.1

06/20/1995

RPI 1281

Solicitação de exame técnico

#4.1

04/27/1993

RPI 1169

Publicação do pedido de patente

#3.1

12/04/1990

RPI 1044

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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