(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO CONTINUO PARA OBTENCAO DE FIBRA DE CARBONO A PARTIR DE POLIACRILONITRILA USANDO FLUXO DE AR AQUECIDO

IndeferidaInvention Patent

Application data

Number

PI8303726

Type

Invention Patent

Filing

07/12/1983

Publication

02/20/1985

Progress at the INPI

Under appeal
  1. Filing07/12/83
  2. Publication02/20/85
  3. Examination02/18/86
  4. Refused08/01/89
  5. Grant
  6. In force

The application was refused by the INPI on 08/01/1989. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 08/01/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BANCO DO BRASIL S A [BR]

TECNICO AEROESPACIAL CTA CENTR [BR]

Inventors

S. D. (pessoa física)

S. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

08/01/1989

RPI 980

Conhecimento de parecer técnico

#7.1

06/14/1988

RPI 921

Retificação

#15.6

02/09/1988

RPI 903

Alteração de numeração

#15.1

10/06/1987

RPI 885

Solicitação de exame técnico

#4.1

02/18/1986

RPI 800

Publicação do pedido de patente

#3.1

02/20/1985

RPI 748

Pedido de patente depositado

#2.1

09/20/1983

RPI 674

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.