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Official data from INPI

COMPOSIÇÕES POLI-OLEFÍNICAS AUTO-EXTINTORAS

Em AnáliseInvention Patent

Application data

Number

PI8202471

Type

Invention Patent

Filing

04/22/1982

Publication

04/12/1983

Progress at the INPI

  1. Filing04/22/82
  2. Publication04/12/83
  3. Examination06/18/85
  4. Allowance09/06/88
  5. Grant03/20/90
  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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montedison S.p.A

IT

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Inventors

G. B. (pessoa física)

IT

R. L. (pessoa física)

IT

Technical data

Priority claims

IT

21459 A/81 · 04/30/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

12/27/1988

RPI 949

Deferimento

#9.1

09/06/1988

RPI 933

Pedido de certificado de adição de invenção

#5.1

11/19/1985

RPI 787

Solicitação de exame técnico

#4.1

06/18/1985

RPI 765

Publicação do pedido de patente

#3.1

04/12/1983

RPI 651

Pedido de patente depositado

#2.1

06/15/1982

RPI 608

Carta-patente expirada

#21.1

Patente extinta em 22/04/97

07/01/2008

RPI 1956

Concessão da patente

#16.1

03/20/1990

RPI 1010

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