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

PROCESSO PARA MACERACAO DE FIBRAS CELULOSICAS EM USINAS DE POLPA COM REMOCAO DE CLORETO DE SODIO

Em AnáliseInvention Patent

Application data

Number

PI7703850

Type

Invention Patent

Filing

06/14/1977

Publication

-

Progress at the INPI

  1. Filing06/14/77
  2. Publication
  3. Examination
  4. Allowance07/19/83
  5. Grant01/31/84
  6. Terminated07/12/88

The patent was granted on 01/31/1984 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ERCO ENVIROTECH LTD

Inventors

R. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

16.3

04/17/1984

RPI 704

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

05/18/1982

RPI 604

Exigência - art. 36 da LPI

#6.1

11/24/1981

RPI 579

Patent monitoring

Track this patent in real time.

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