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

PROCESSO PARA PREPARACAO DE UMA SOLUCAO ESTAVEL DE SULFATO DE TITANILA

Em AnáliseInvention Patent

Application data

Number

PI8008525

Type

Invention Patent

Filing

09/19/1980

Publication

08/10/1982

Progress at the INPI

  1. Filing09/19/80
  2. Publication08/10/82
  3. Examination10/05/82
  4. Allowance06/12/84
  5. Grant12/26/84
  6. Terminated06/21/88

The patent was granted on 12/26/1984 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NL INDUSTRIES INC [US]

See this company's full portfolio

Inventors

K. E. (pessoa física)

K. A. (pessoa física)

R. A. (pessoa física)

W. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/12/1984

RPI 712

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

10/05/1982

RPI 624

Publicação do pedido de patente

#3.1

08/10/1982

RPI 616

Patent monitoring

Track this patent in real time.

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