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Official data from INPI

MEDIDOR DE VACUO REGULADOR A RESISTÊNCIA CONSTANTE

Em AnáliseInvention Patent

Application data

Number

PI8701126

Type

Invention Patent

Filing

02/23/1987

Publication

09/13/1988

Progress at the INPI

  1. Filing02/23/87
  2. Publication09/13/88
  3. Examination08/22/89
  4. Allowance12/24/91
  5. Grant10/27/92
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 08/22/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sensum Indústria e Comércio Ltda ME

SP, BR

Inventors

R. L. (pessoa física)

BR

S. G. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/22/1989

RPI 983

Publicação do pedido de patente

#3.1

09/13/1988

RPI 934

Pedido de patente depositado

#2.1

06/23/1987

RPI 870

Carta-patente expirada

#21.1

Patente extinta em 23/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

05/19/1992

RPI 1120

Deferimento

#9.1

12/24/1991

RPI 1099

14.1

03/01/1990

RPI 1007

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