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Official data from INPI

RELÉ PNEUMÁTICO POR BALANÇO DE FORÇA DE MULTIPLICIDADE DE MODOS, RELÉ PNEUMÁTICO DE QUATRO MODOS, E RELÉ PNEUMÁTICO SELETIVAMENTE OPERÁVEL

Arquivada/ExtintaInvention Patent

Application data

Number

PI9003558

Type

Invention Patent

Filing

07/23/1990

Publication

08/27/1991

Progress at the INPI

  1. Filing07/23/90
  2. Publication08/27/91
  3. Examination08/31/93
  4. Allowance10/04/94
  5. Grant06/27/95
  6. Expired05/25/10

The letters patent expired on 05/25/2010: 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: 05/25/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fisher Controls International, Inc

US

See this company's full portfolio

Inventors

R. W. (pessoa física)

US

S. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

384.547 · 07/24/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/07/2005

05/25/2010

RPI 2055

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

02/07/1995

RPI 1262

Deferimento

#9.1

10/04/1994

RPI 1244

Solicitação de exame técnico

#4.1

08/31/1993

RPI 1187

Publicação do pedido de patente

#3.1

08/27/1991

RPI 1082

Pedido de patente depositado

#2.1

01/29/1991

RPI 1052

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