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

MÉTODO PARA PURIFICAR SOLUÇÕES AQUOSAS

ConcedidaInvention Patent

Application data

Number

PI8404502

Type

Invention Patent

Filing

09/10/1984

Publication

08/06/1985

Progress at the INPI

  1. Filing09/10/84
  2. Publication08/06/85
  3. Examination08/18/87
  4. Allowance01/03/89
  5. Grant09/26/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

SE

See this company's full portfolio

Inventors

T. A. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8304858.7 · 09/12/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/16/1989

RPI 969

Deferimento

#9.1

01/03/1989

RPI 950

Exigência - art. 36 da LPI

#6.1

08/30/1988

RPI 932

Solicitação de exame técnico

#4.1

08/18/1987

RPI 878

Publicação do pedido de patente

#3.1

08/06/1985

RPI 772

Pedido de patente depositado

#2.1

11/13/1984

RPI 734

Carta-patente expirada

#21.1

Patente extinta em 10/09/99

07/08/2008

RPI 1957

Patent monitoring

Track this patent in real time.

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