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

AM NO-ESTER DE HIDRO-CARBIL-POLI-(OXI-ALQUILENO);COMPOSICAO COMBUSTIVEL E LUBRIFICANTE;CONCENTRADO

ConcedidaInvention Patent

Application data

Number

PI7904094

Type

Invention Patent

Filing

07/03/1978

Publication

-

Progress at the INPI

  1. Filing07/03/78
  2. Publication
  3. Examination
  4. Allowance09/15/87
  5. Grant04/26/88
  6. Expired04/04/95

The letters patent expired on 04/04/1995: 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: 04/26/1988. We update with every new RPI gazette, published weekly.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

01/26/1988

RPI 901

Deferimento

#9.1

09/15/1987

RPI 882

Exigência - art. 36 da LPI

#6.1

02/12/1985

RPI 747

Conhecimento de parecer técnico

#7.1

01/31/1984

RPI 693

6.2

04/06/1982

RPI 598

Carta-patente expirada

#21.1

04/04/1995

RPI 1270

Patent monitoring

Track this patent in real time.

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