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

Aparelho de filtro.

ConcedidaInvention Patent

Application data

Number

PI8005958

Type

Invention Patent

Filing

09/17/1980

Publication

-

Progress at the INPI

  1. Filing09/17/80
  2. Publication
  3. Examination
  4. Allowance12/04/84
  5. Grant05/28/85
  6. Expired11/07/95

The letters patent expired on 11/07/1995: 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: 05/28/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allen Starling Johnson, Jr.

US

Inventors

J. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

076.605 · 09/18/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Deferimento

#9.1

12/04/1984

RPI 737

Exigência - art. 36 da LPI

#6.1

04/24/1984

RPI 705

Conhecimento de parecer técnico

#7.1

10/18/1983

RPI 678

Carta-patente expirada

#21.1

11/07/1995

RPI 1301

Patent monitoring

Track this patent in real time.

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