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

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7406177

Type

Invention Patent

Filing

07/26/1974

Publication

-

Progress at the INPI

  1. Filing07/26/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant04/29/80
  6. Expired11/17/92

The letters patent expired on 11/17/1992: 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. F. (pessoa física)

SP, BR

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

08/25/1987

RPI 879

Anuidade - prazo legal encerrado

#18.2

06/02/1987

RPI 867

18.8

11/26/1985

RPI 788

Anuidade - prazo legal encerrado

#18.2

07/30/1985

RPI 771

Concessão da patente

#16.1

04/29/1980

RPI 497

Carta-patente expirada

#21.1

11/17/1992

RPI 1146

Patent monitoring

Track this patent in real time.

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