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Official data from INPI

MATERIAL DE ÂNODO ELETRICAMENTE CONDUTOR

Em AnáliseInvention Patent

Application data

Number

PI8201698

Type

Invention Patent

Filing

03/24/1982

Publication

02/16/1983

Progress at the INPI

  1. Filing03/24/82
  2. Publication02/16/83
  3. Examination11/08/83
  4. Allowance08/01/89
  5. Grant03/20/90
  6. Terminated11/15/94

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.

Talk to a specialist

Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. C. (pessoa física)

US

M. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

247.429 · 03/25/1981

US

247.431 · 03/25/1981

US

295.352 · 08/24/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/28/1989

RPI 997

Deferimento

#9.1

08/01/1989

RPI 980

Exigência - art. 36 da LPI

#6.1

11/01/1988

RPI 941

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

11/08/1983

RPI 681

Publicação do pedido de patente

#3.1

02/16/1983

RPI 643

Pedido de patente depositado

#2.1

05/11/1982

RPI 603

Anuidade - prazo legal encerrado

#18.2

11/15/1994

RPI 1250

Concessão da patente

#16.1

03/20/1990

RPI 1010

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