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Official data from INPI

COMPOSIÇÃO POLÍMERA APERFEIÇOADA, COMPOSIÇÃO POLÍMERA COMPATIBILIZADA, E PROCESSO PARA PREPARAÇÃO DE UM POLÍMERO DE OLEFINA

ConcedidaInvention Patent

Application data

Number

PI8008608

Type

Invention Patent

Filing

12/30/1980

Publication

-

Progress at the INPI

  1. Filing12/30/80
  2. Publication
  3. Examination10/27/81
  4. Allowance08/02/88
  5. Grant04/25/89
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Advanced Elastomer Systems, L.P

US

See this company's full portfolio

Inventors

A. C. (pessoa física)

US

R. P. (pessoa física)

US

Technical data

Priority claims

US

109.728 · 01/04/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/25/1989

RPI 966

Notificação para pagamento de retribuição

#13.1

11/29/1988

RPI 945

Deferimento

#9.1

08/02/1988

RPI 928

Exigência - art. 36 da LPI

#6.1

09/25/1984

RPI 727

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

6.2

12/07/1982

RPI 633

Solicitação de exame técnico

#4.1

10/27/1981

RPI 575

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

Pedido de licença compulsória

#20.1

04/21/1992

RPI 1116

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