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Official data from INPI

SONDA PARA CONTROLE DE NÍVEL EM RESERVATÓRIO.

IndeferidaInvention Patent

Application data

Number

PI8106463

Type

Invention Patent

Filing

10/07/1981

Publication

05/31/1983

Progress at the INPI

Under appeal
  1. Filing10/07/81
  2. Publication05/31/83
  3. Examination02/26/85
  4. Refused08/19/86
  5. Grant
  6. In force

The application was refused by the INPI on 08/19/1986. The invention was never patented.

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Latest action published by the INPI: 08/19/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Companhia Siderúrgica Nacional - CSN

RJ, BR

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Inventors

M. J. (pessoa física)

S. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

08/19/1986

RPI 826

Conhecimento de parecer técnico

#7.1

01/14/1986

RPI 795

Solicitação de exame técnico

#4.1

02/26/1985

RPI 749

Publicação do pedido de patente

#3.1

05/31/1983

RPI 658

Pedido de patente depositado

#2.1

11/24/1981

RPI 579

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: G01F 23/10; B65D 90/26; B65D 90/48.

03/27/2018

RPI 2464

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