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Official data from INPI

PROCESSO PARA PREPARAR UM POLIORGANOSSILOXANO E COMPOSIÇÃO CATALISADORA.

DeferidaInvention Patent

Application data

Number

PI8403397

Type

Invention Patent

Filing

07/09/1984

Publication

06/18/1985

Progress at the INPI

  1. Filing07/09/84
  2. Publication06/18/85
  3. Examination08/12/86
  4. Allowance11/14/89
  5. Grant05/29/90
  6. Terminated05/07/96

The patent was granted on 05/29/1990 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

D. C. (pessoa física)

US

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Inventors

C. K. (pessoa física)

Technical data

IPC Classification

Priority claims

US

519,357 · 08/01/1983

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

06/14/1988

RPI 921

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

06/18/1985

RPI 765

Pedido de patente depositado

#2.1

09/11/1984

RPI 725

Anuidade - prazo legal encerrado

#18.2

05/07/1996

RPI 1327

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/20/1990

RPI 1010

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