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

PROCESSO PARA CONTROLAR A TENSÃO DE CORRENTE CONTÍNUA EM UM PRECIPITADOR ELETROSTÁTICO.

Concessão AnuladaInvention Patent

Application data

Number

PI8108193

Type

Invention Patent

Filing

12/16/1981

Publication

09/28/1982

Progress at the INPI

  1. Filing12/16/81
  2. Publication09/28/82
  3. Examination02/22/83
  4. Allowance02/12/85
  5. Grant08/27/85
  6. In force12/16/01

The patent is in force and subject to a compulsory licence request: third parties have asked for authorisation to exploit the technology.

Protection valid until:12/16/2001

Leave your contact and we will alert you

We track INPI publications and let you know as soon as this case moves.

We use your details only for this alert.

Latest action published by the INPI: 10/29/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F.L. Smidth S.A., Comércio e Indústria

See this company's full portfolio

Inventors

L. L. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8040463 · 12/17/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

10/29/1985

RPI 784

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

05/28/1985

RPI 762

Deferimento

#9.1

02/12/1985

RPI 747

Exigência - art. 36 da LPI

#6.1

05/08/1984

RPI 707

Solicitação de exame técnico

#4.1

02/22/1983

RPI 644

Publicação do pedido de patente

#3.1

09/28/1982

RPI 623

Pedido de patente depositado

#2.1

02/09/1982

RPI 590

20.4

04/02/1991

RPI 1061

20.7

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.