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

PROCESSO PARA PREPARAR UMA ESPUMA DE CERAMICA QUE TEM PERMEABILIDADE CONTROLADA E UNIFORMIDADE ESTRUTURAL

ConcedidaInvention Patent

Application data

Number

PI7801041

Type

Invention Patent

Filing

02/22/1977

Publication

-

Progress at the INPI

  1. Filing02/22/77
  2. Publication
  3. Examination
  4. Allowance02/12/86
  5. Grant08/26/86
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALUSUISSE

See this company's full portfolio

Inventors

D. J. (pessoa física)

P. R. (pessoa física)

Y. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Notificação para pagamento de retribuição

#13.1

06/24/1986

RPI 818

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

05/14/1985

RPI 760

Conhecimento de parecer técnico

#7.1

05/18/1982

RPI 604

6.2

12/15/1981

RPI 582

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

Patent monitoring

Track this patent in real time.

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