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Official data from INPI

PROCESSO PARA A CURA DE UMA COMPOSICAO DE RESINA DE POLIESTER INSATURADO;COMPOSICAO DE RESINA DE POLIESTER INSATURADO;SISTEMA ACELERADOR;COMPLEXO DE COBALTO

ConcedidaInvention Patent

Application data

Number

PI8107703

Type

Invention Patent

Filing

12/01/1980

Publication

08/24/1982

Progress at the INPI

  1. Filing12/01/80
  2. Publication08/24/82
  3. Examination04/05/83
  4. Allowance10/15/85
  5. Grant05/27/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TENNECO CHEM [US]

Inventors

B. J. (pessoa física)

H. S. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Deferimento

#9.1

10/15/1985

RPI 782

Exigência - art. 36 da LPI

#6.1

12/26/1984

RPI 740

14.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

04/05/1983

RPI 650

Publicação do pedido de patente

#3.1

08/24/1982

RPI 618

Pedido de patente depositado

#2.1

01/12/1982

RPI 586

Carta-patente expirada

#21.1

Patente extinta em 26/11/96

08/19/2008

RPI 1963

Pedido de licença compulsória

#20.1

07/31/1990

RPI 1026

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