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

PROCESSO PARA REDUZIR A VISCOSIDADE E APERFEIÇOAR A EVAPORABILIDADE DE LIQUIDONEGRO DE SULFATO ORIUNDO DE UMA COCÇÃO DE CELULOSE

Em AnáliseInvention Patent

Application data

Number

PI8607216

Type

Invention Patent

Filing

11/24/1986

Publication

11/01/1988

Progress at the INPI

  1. Filing11/24/86
  2. Publication11/01/88
  3. Examination09/05/89
  4. Allowance12/22/92
  5. Grant08/31/93
  6. Terminated10/03/95

The patent was granted on 08/31/1993 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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

FI

See this company's full portfolio

Inventors

E. K. (pessoa física)

FI

N. V. (pessoa física)

FI

Technical data

IPC Classification

Priority claims

FI

854732 · 11/29/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/05/1989

RPI 985

Notificação de entrada na fase nacional - PCT

#1.3

11/01/1988

RPI 941

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

04/27/1993

RPI 1169

Deferimento

#9.1

12/22/1992

RPI 1151

Exigência - art. 36 da LPI

#6.1

11/26/1991

RPI 1095

Patent monitoring

Track this patent in real time.

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