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

FILTRO DE AGUA APERFEICOADO

Arquivada/ExtintaUtility Model

Application data

Number

MU5700980

Type

Utility Model

Filing

08/16/1977

Publication

-

Progress at the INPI

  1. Filing08/16/77
  2. Publication
  3. Examination
  4. Allowance12/01/81
  5. Grant09/08/82
  6. Expired08/16/88

The letters patent expired on 08/16/1988: 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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. W. (pessoa física)

Inventors

C. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

08/16/1988

RPI 930

Pedido de licença compulsória

#20.1

03/07/1984

RPI 698

201

10/11/1983

RPI 677

Pedido de licença voluntária

#17.1

04/19/1983

RPI 652

210

03/01/1983

RPI 645

Pedido de licença voluntária

#17.1

10/19/1982

RPI 626

Concessão da patente

#16.1

09/08/1982

RPI 620

Notificação para pagamento de retribuição

#13.1

04/13/1982

RPI 599

15.0

01/12/1982

RPI 586

15.0

12/15/1981

RPI 582

Deferimento

#9.1

12/01/1981

RPI 580

Patent monitoring

Track this patent in real time.

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