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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE ORGANOPOLISSILOXANAS ORGANOFUNCIONAIS

DeferidaInvention Patent

Application data

Number

PI8502305

Type

Invention Patent

Filing

05/16/1985

Publication

01/21/1986

Progress at the INPI

  1. Filing05/16/85
  2. Publication01/21/86
  3. Examination07/08/86
  4. Allowance11/14/89
  5. Grant06/26/90
  6. Terminated05/21/96

The patent was granted on 06/26/1990 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Wacker-Chemie GMBH

DE

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Inventors

D. A. (pessoa física)

BR

D. K. (pessoa física)

DE

D. H. (pessoa física)

DE

K. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 34 18 358.2 · 05/17/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

11/14/1989

RPI 995

Exigência - art. 36 da LPI

#6.1

05/16/1989

RPI 969

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

01/21/1986

RPI 796

Pedido de patente depositado

#2.1

07/23/1985

RPI 770

Anuidade - prazo legal encerrado

#18.2

05/21/1996

RPI 1329

Concessão da patente

#16.1

06/26/1990

RPI 1024

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

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