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Official data from INPI

PROCESSO PARA PREPARAR UM ORGANOPOLISSILOXANO.

Em AnáliseInvention Patent

Application data

Number

PI8700990

Type

Invention Patent

Filing

02/27/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing02/27/87
  2. Publication12/22/87
  3. Examination04/19/88
  4. Allowance12/01/92
  5. Grant06/29/93
  6. Terminated10/17/95

The patent was granted on 06/29/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Toray Silicone Company Limited

JP

See this company's full portfolio

Inventors

K. S. (pessoa física)

JP

M. H. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

47127/86 · 03/04/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/19/1988

RPI 913

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

06/29/1993

RPI 1178

Notificação para pagamento de retribuição

#13.1

04/20/1993

RPI 1168

Deferimento

#9.1

12/01/1992

RPI 1148

Exigência - art. 36 da LPI

#6.1

11/05/1991

RPI 1092

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