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

ESTRUTURA REFRATARIA,PROCESSO PARA FORMACAO DA MESMA,APARELHO DE TUBEIRA DE PORTA DESLIZANTE EMPREGANDO A MESMA,BEM COMO PROCESSO PARA CONDICIONAMENTO DA MESMA

Em AnáliseInvention Patent

Application data

Number

PI7700430

Type

Invention Patent

Filing

01/22/1976

Publication

-

Progress at the INPI

  1. Filing01/22/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant07/27/82
  6. Expired07/27/93

The letters patent expired on 07/27/1993: 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: 10/26/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DIDIER WERKE AG

See this company's full portfolio

Inventors

F. H. (pessoa física)

H. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.0

10/26/1982

RPI 627

Concessão da patente

#16.1

07/27/1982

RPI 614

Notificação para pagamento de retribuição

#13.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

Patent monitoring

Track this patent in real time.

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