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

APERFEICOAMENTO APARELHO PARA PURIFICACAO OU DEPURACAO DE GASES E VAPORES

ConcedidaInvention Patent

Application data

Number

PI7802534

Type

Invention Patent

Filing

04/24/1978

Publication

-

Progress at the INPI

  1. Filing04/24/78
  2. Publication
  3. Examination06/29/82
  4. Allowance05/15/84
  5. Grant11/27/84
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

Inventors

C. G. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/15/1984

RPI 708

Conhecimento de parecer técnico

#7.1

10/11/1983

RPI 677

Solicitação de exame técnico

#4.1

06/29/1982

RPI 610

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

Patent monitoring

Track this patent in real time.

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