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Official data from INPI

PROCESSO DE PRÉ-ESTABILIZAÇÃO E DE ESTABILIZAÇÃO DE POLÍMEROS Á BASE DE CLORETO DE VINILA

DeferidaInvention Patent

Application data

Number

PI8303474

Type

Invention Patent

Filing

06/29/1983

Publication

02/07/1984

Progress at the INPI

  1. Filing06/29/83
  2. Publication02/07/84
  3. Examination04/22/86
  4. Allowance10/31/89
  5. Grant05/29/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

FR

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Inventors

L. C. (pessoa física)

FR

Technical data

Priority claims

FR

82/11789 · 07/01/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/31/1989

RPI 993

Exigência - art. 36 da LPI

#6.1

03/28/1989

RPI 962

6.2

08/25/1987

RPI 879

Solicitação de exame técnico

#4.1

04/22/1986

RPI 809

Publicação do pedido de patente

#3.1

02/07/1984

RPI 694

Pedido de patente depositado

#2.1

08/09/1983

RPI 668

Carta-patente expirada

#21.1

Patente extinta em 29/06/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/06/1990

RPI 1008

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