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Official data from INPI

SISTEMA DE MEDIÇÃO DE NÍVEL DE FLUIDOS

Em AnáliseInvention Patent

Application data

Number

PI8502003

Type

Invention Patent

Filing

04/24/1985

Publication

10/01/1985

Progress at the INPI

  1. Filing04/24/85
  2. Publication10/01/85
  3. Examination06/03/86
  4. Allowance07/18/89
  5. Grant05/29/90
  6. Terminated07/25/95

The patent was granted on 05/29/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pema Sistemas Digitais e Analógicos Ltda

SP, BR

Inventors

M. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/14/1989

RPI 995

Deferimento

#9.1

07/18/1989

RPI 978

Solicitação de exame técnico

#4.1

06/03/1986

RPI 815

Publicação antecipada

#3.2

10/01/1985

RPI 780

Pedido de patente depositado

#2.1

07/09/1985

RPI 768

Anuidade - prazo legal encerrado

#18.2

07/25/1995

RPI 1286

Republicação - classificação IPC

#15.11

06/04/1991

RPI 1070

Concessão da patente

#16.1

05/29/1990

RPI 1020

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