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Official data from INPI

PROCESSO DE POLIMERIZAÇÃO EM SUSPENSÃO DE MONÔMERO DE CLORETO DE VINILA

Prazo de SigiloInvention Patent

Application data

Number

PI8903374

Type

Invention Patent

Filing

07/07/1989

Publication

01/08/1991

Progress at the INPI

  1. Filing07/07/89
  2. Publication01/08/91
  3. Examination04/27/93
  4. Allowance12/10/96
  5. Grant09/30/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Trikem S.A

BA, BR

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Inventors

I. M. (pessoa física)

BR

I. S. (pessoa física)

BR

L. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

10/24/1989

RPI 992

Carta-patente expirada

#21.1

Patente extinta em 07/07/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

09/30/1997

RPI 1400

Alteração de nome deferida

#25.4

08/26/1997

RPI 1395

Deferimento

#9.1

12/10/1996

RPI 1358

Exigência - art. 36 da LPI

#6.1

05/23/1995

RPI 1277

Solicitação de exame técnico

#4.1

04/27/1993

RPI 1169

Publicação do pedido de patente

#3.1

01/08/1991

RPI 1049

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