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Official data from INPI

OSCILADOR DE PRESSÃO DE FLUIDO

Em ExigênciaInvention Patent

Application data

Number

PI8603336

Type

Invention Patent

Filing

07/15/1986

Publication

02/24/1987

Progress at the INPI

  1. Filing07/15/86
  2. Publication02/24/87
  3. Examination02/21/89
  4. Allowance11/20/90
  5. Grant06/25/91
  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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Thermo Electron-Web Systems, Inc.

US

Inventors

R. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

755.618 · 07/16/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

11/28/1989

RPI 997

Solicitação de exame técnico

#4.1

02/21/1989

RPI 957

Publicação do pedido de patente

#3.1

02/24/1987

RPI 853

Pedido de patente depositado

#2.1

12/30/1986

RPI 845

Carta-patente expirada

#21.1

Patente extinta em 15/07/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

06/25/1991

RPI 1073

Notificação para pagamento de retribuição

#13.1

03/05/1991

RPI 1057

Deferimento

#9.1

11/20/1990

RPI 1042

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