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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE UM POLI-IMIDO-SILOXANO SOLÚVEL

PublicadaInvention Patent

Application data

Number

PI8801001

Type

Invention Patent

Filing

03/08/1988

Publication

10/11/1988

Progress at the INPI

  1. Filing03/08/88
  2. Publication10/11/88
  3. Examination09/18/90
  4. Allowance01/18/94
  5. Grant06/28/94
  6. Terminated12/31/96

The patent was granted on 06/28/1994 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: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

O. C. (pessoa física)

US

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Inventors

C. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

032.272 · 03/31/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/11/1988

RPI 938

Pedido de patente depositado

#2.1

07/12/1988

RPI 925

Anuidade - prazo legal encerrado

#18.2

12/31/1996

RPI 1361

Concessão da patente

#16.1

06/28/1994

RPI 1230

Deferimento

#9.1

01/18/1994

RPI 1207

Exigência - art. 36 da LPI

#6.1

04/27/1993

RPI 1169

Exigência - art. 36 da LPI

#6.1

05/19/1992

RPI 1120

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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