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Official data from INPI

PROCESSO PARA A MISTURA IN SITU DE POLÍMEROS

Arquivada/ExtintaInvention Patent
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Application data

Number

PI8905803

Type

Invention Patent

Filing

11/16/1989

Publication

06/12/1990
View on INPI

Progress at the INPI

  1. Filing11/16/89
  2. Publication06/12/90
  3. Examination10/29/91
  4. Allowance07/07/98
  5. Grant12/29/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Union Carbide Chemicals and Plastics Company Inc.

US

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Inventors

F. K. (pessoa física)

US

K. L. (pessoa física)

US

S. S. (pessoa física)

US

Technical data

IPC Classification

C08F 297/08C08F 4/60

Priority claims

US

271.639 · 11/16/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 16/11/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

DEFERIDO DE ACORDO COM O ARTIGO 229 DA LEI N°9279 DE 14/05/96

07/07/1998

RPI 1437

Exigência - art. 36 da LPI

#6.1

02/27/1996

RPI 1317

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

Exigência - art. 36 da LPI

#6.1

01/03/1995

RPI 1257

Solicitação de exame técnico

#4.1

10/29/1991

RPI 1091

Publicação do pedido de patente

#3.1

06/12/1990

RPI 1022

Pedido de patente depositado

#2.1

03/27/1990

RPI 1011

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