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Official data from INPI

PROCESSO PARA ADERIR UM POLÍMERO A UM MATERIAL SILICOSO

Em AnáliseInvention Patent

Application data

Number

PI8400994

Type

Invention Patent

Filing

03/01/1984

Publication

10/16/1984

Progress at the INPI

  1. Filing03/01/84
  2. Publication10/16/84
  3. Examination11/18/86
  4. Allowance08/08/89
  5. Grant03/20/90
  6. Terminated02/25/92

The patent was granted on 03/20/1990 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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. I. (pessoa física)

US

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Inventors

E. I. (pessoa física)

US

Technical data

Priority claims

US

473.292 · 03/08/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

12/05/1989

RPI 998

Deferimento

#9.1

08/08/1989

RPI 981

Exigência - art. 36 da LPI

#6.1

12/06/1988

RPI 946

Solicitação de exame técnico

#4.1

11/18/1986

RPI 839

Publicação do pedido de patente

#3.1

10/16/1984

RPI 730

Pedido de patente depositado

#2.1

05/15/1984

RPI 708

Anuidade - prazo legal encerrado

#18.2

02/25/1992

RPI 1108

Concessão da patente

#16.1

03/20/1990

RPI 1010

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