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

Processo de preparação de soluções aquosas de ácido poliacrílicos de fracas massas moleculares, ou de seus sais e soluções aquosas obtidas pelo processo.

ConcedidaInvention Patent

Application data

Number

PI8005327

Type

Invention Patent

Filing

08/22/1980

Publication

-

Progress at the INPI

  1. Filing08/22/80
  2. Publication
  3. Examination03/08/83
  4. Allowance08/14/84
  5. Grant03/26/85
  6. Terminated08/02/94

The patent was granted on 03/26/1985 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: 03/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

See this company's full portfolio

Inventors

G. P. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

79 21336 · 08/24/1979

FR

80 15874 · 07/18/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/14/1984

RPI 721

Exigência - art. 36 da LPI

#6.1

09/20/1983

RPI 674

Solicitação de exame técnico

#4.1

03/08/1983

RPI 646

Anuidade - prazo legal encerrado

#18.2

08/02/1994

RPI 1235

Patent monitoring

Track this patent in real time.

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