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Official data from INPI

ORGANOPOLISSILOXANOS COPOLIMÉRICOS LÍQUIDOS COMPREENDENDO Si02 E PROCESSO PARA PREPARAÇÃO DOS MESMOS

ConcedidaInvention Patent

Application data

Number

PI8108899

Type

Invention Patent

Filing

10/28/1981

Publication

10/26/1982

Progress at the INPI

  1. Filing10/28/81
  2. Publication10/26/82
  3. Examination06/19/84
  4. Allowance06/17/86
  5. Grant12/30/86
  6. Terminated06/27/95

The patent was granted on 12/30/1986 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: 12/30/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

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Inventors

B. D. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

212.188 · 12/02/1980

US

PCT/81/01458 · 10/28/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/30/1986

RPI 845

Notificação para pagamento de retribuição

#13.1

10/14/1986

RPI 834

Deferimento

#9.1

06/17/1986

RPI 817

Exigência - art. 36 da LPI

#6.1

04/16/1985

RPI 756

Solicitação de exame técnico

#4.1

06/19/1984

RPI 713

Notificação de entrada na fase nacional - PCT

#1.3

10/26/1982

RPI 627

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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