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Official data from INPI

DETECTOR DE DESCARGA DISRUPTIVA

DeferidaInvention Patent

Application data

Number

PI8405707

Type

Invention Patent

Filing

11/08/1984

Publication

09/10/1985

Progress at the INPI

  1. Filing11/08/84
  2. Publication09/10/85
  3. Examination02/25/86
  4. Allowance08/29/89
  5. Grant04/24/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. L. Smidth Comércio e Industria Ltda

SP, BR

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

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Inventors

C. T. (pessoa física)

DK

Technical data

IPC Classification

Priority claims

GB

8329845 · 11/09/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

08/29/1989

RPI 984

6.2

09/15/1987

RPI 882

Solicitação de exame técnico

#4.1

02/25/1986

RPI 801

Publicação do pedido de patente

#3.1

09/10/1985

RPI 777

Pedido de patente depositado

#2.1

01/22/1985

RPI 744

Carta-patente expirada

#21.1

Patente extinta em 08/11/99

07/08/2008

RPI 1957

20.4

04/23/1991

RPI 1064

Concessão da patente

#16.1

04/24/1990

RPI 1015

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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