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Official data from INPI

SONDA PARA EXTRAIR UMA AMOSTRA DE GÁS DE UMA CORRENTE DE GÁS QUENTE EMPOEIRADA

Em AnáliseInvention Patent

Application data

Number

PI8603843

Type

Invention Patent

Filing

08/12/1986

Publication

03/24/1987

Progress at the INPI

  1. Filing08/12/86
  2. Publication03/24/87
  3. Examination12/20/88
  4. Allowance10/22/91
  5. Grant08/25/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 12/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. L. Smidth Comércio e Industria Ltda

SP, BR

See this company's full portfolio

Inventors

G. J. (pessoa física)

DK

Technical data

IPC Classification

Priority claims

GB

8520273 · 08/13/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/20/1988

RPI 948

Publicação do pedido de patente

#3.1

03/24/1987

RPI 857

Pedido de patente depositado

#2.1

01/06/1987

RPI 846

Carta-patente expirada

#21.1

Patente extinta em 12/08/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/25/1992

RPI 1134

Notificação para pagamento de retribuição

#13.1

03/03/1992

RPI 1109

Deferimento

#9.1

10/22/1991

RPI 1090

14.4

06/11/1991

RPI 1071

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