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Official data from INPI

AUTOCLAVE VERTICAL E PROCESSO DE PREPARAÇÃO EM MASSA DE POLÍMEROS E COPOLÍMEROS À BASE DE CLORETO DE VINILA

Em AnáliseInvention Patent

Application data

Number

PI8601630

Type

Invention Patent

Filing

04/10/1986

Publication

12/16/1986

Progress at the INPI

  1. Filing04/10/86
  2. Publication12/16/86
  3. Examination12/06/88
  4. Allowance08/01/95
  5. Grant03/26/96
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 12/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Atochem

FR

See this company's full portfolio

Inventors

Y. L. (pessoa física)

FR

Y. P. (pessoa física)

FR

Technical data

Priority claims

FR

85 05429 · 04/11/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/06/1988

RPI 946

Publicação do pedido de patente

#3.1

12/16/1986

RPI 843

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Carta-patente expirada

#21.1

Patente extinta em 10/04/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

03/26/1996

RPI 1321

Deferimento

#9.1

08/01/1995

RPI 1287

Exigência - art. 36 da LPI

#6.1

11/30/1993

RPI 1200

Conhecimento de parecer técnico

#7.1

03/02/1993

RPI 1161

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