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

PROCESSO PARA OPERAR UMA CELULA ELETROLITICA DE CLORO-ALCALI,BEM COMO CELULA ELETROLITICA

Em AnáliseInvention Patent

Application data

Number

PI7901504

Type

Invention Patent

Filing

03/13/1978

Publication

-

Progress at the INPI

  1. Filing03/13/78
  2. Publication
  3. Examination12/08/81
  4. Allowance08/30/83
  5. Grant03/27/84
  6. Terminated05/17/88

The patent was granted on 03/27/1984 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DIAMOND SHAMROCK CORP

See this company's full portfolio

Inventors

L. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Pedido de licença compulsória

#20.1

03/18/1986

RPI 804

20.7

03/11/1986

RPI 803

20.4

03/04/1986

RPI 802

20.4

02/18/1986

RPI 800

Concessão da patente

#16.1

03/27/1984

RPI 701

Notificação para pagamento de retribuição

#13.1

12/20/1983

RPI 687

Deferimento

#9.1

08/30/1983

RPI 671

Exigência - art. 36 da LPI

#6.1

08/24/1982

RPI 618

Solicitação de exame técnico

#4.1

12/08/1981

RPI 581

Patent monitoring

Track this patent in real time.

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