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Official data from INPI

MONITOR DE ATUADOR DUPLO

ConcedidaInvention Patent

Application data

Number

PI8402038

Type

Invention Patent

Filing

05/02/1984

Publication

12/11/1984

Progress at the INPI

  1. Filing05/02/84
  2. Publication12/11/84
  3. Examination08/12/86
  4. Allowance05/02/89
  5. Grant10/24/89
  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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

D. V. (pessoa física)

US

S. W. (pessoa física)

US

W. F. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

490,645 · 05/02/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/02/1989

RPI 967

Exigência - art. 36 da LPI

#6.1

10/25/1988

RPI 940

6.2

09/08/1987

RPI 881

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

12/11/1984

RPI 738

Pedido de patente depositado

#2.1

07/10/1984

RPI 716

Carta-patente expirada

#21.1

Patente extinta em 02/05/99

07/08/2008

RPI 1957

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