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Official data from INPI

MEDIDOR DE PRESSÃO DIFERENCIAL COM LEITURA DIGITAL.

Em AnáliseInvention Patent

Application data

Number

PI8705786

Type

Invention Patent

Filing

10/29/1987

Publication

04/12/1988

Progress at the INPI

  1. Filing10/29/87
  2. Publication04/12/88
  3. Examination06/21/88
  4. Allowance04/06/93
  5. Grant02/16/94
  6. Terminated06/25/96

The patent was granted on 02/16/1994 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. P. (pessoa física)

SP, BR

See this company's full portfolio

Inventors

C. R. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/21/1988

RPI 922

Publicação antecipada

#3.2

04/12/1988

RPI 912

Pedido de patente depositado

#2.1

01/05/1988

RPI 898

Anuidade - prazo legal encerrado

#18.2

06/25/1996

RPI 1334

Concessão da patente

#16.1

02/16/1994

RPI 1211

Notificação para pagamento de retribuição

#13.1

07/27/1993

RPI 1182

Deferimento

#9.1

04/06/1993

RPI 1166

Exigência - art. 36 da LPI

#6.1

08/25/1992

RPI 1134

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