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

MEMBROS DE ELETRODO DE DESCARGA

ConcedidaInvention Patent

Application data

Number

PI7808088

Type

Invention Patent

Filing

12/09/1977

Publication

-

Progress at the INPI

  1. Filing12/09/77
  2. Publication
  3. Examination
  4. Allowance07/10/84
  5. Grant01/29/85
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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: 01/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SMIDTH & CO AS F L

See this company's full portfolio

Inventors

B. E. (pessoa física)

L. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

10/23/1984

RPI 731

Deferimento

#9.1

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

Conhecimento de parecer técnico

#7.1

08/31/1982

RPI 619

6.2

01/19/1982

RPI 587

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

20.4

04/02/1991

RPI 1061

Patent monitoring

Track this patent in real time.

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