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Official data from INPI

COMPOSIÇÃO PARA FORMAÇÃO DE ELASTÔMERO DE SILICONE E PROCESSO PARA A PREPARAÇÃO DE UMA ESPUMA ELASTOMÉRICA.

ConcedidaInvention Patent

Application data

Number

PI8401510

Type

Invention Patent

Filing

04/02/1984

Publication

11/13/1984

Progress at the INPI

  1. Filing04/02/84
  2. Publication11/13/84
  3. Examination10/15/85
  4. Allowance01/03/89
  5. Grant09/26/89
  6. Terminated10/16/90

The patent was granted on 09/26/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dow Corning Limited

GB

Inventors

R. C. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8309230 · 04/05/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/16/1989

RPI 969

Deferimento

#9.1

01/03/1989

RPI 950

Exigência - art. 36 da LPI

#6.1

03/29/1988

RPI 910

Solicitação de exame técnico

#4.1

10/15/1985

RPI 782

Publicação do pedido de patente

#3.1

11/13/1984

RPI 734

Pedido de patente depositado

#2.1

06/19/1984

RPI 713

Anuidade - prazo legal encerrado

#18.2

10/16/1990

RPI 1037

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