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Official data from INPI

Indicador e conjunto de monitoração de nível de líquido.

IndeferidaInvention Patent

Application data

Number

PI8102580

Type

Invention Patent

Filing

04/28/1981

Publication

01/19/1982

Progress at the INPI

Under appeal
  1. Filing04/28/81
  2. Publication01/19/82
  3. Examination06/15/82
  4. Refused03/05/85
  5. Grant
  6. In force

The application was refused by the INPI on 03/05/1985. The invention was never patented.

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Latest action published by the INPI: 03/05/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Economics Laboratory, Inc

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Inventors

M. W. (pessoa física)

Technical data

IPC Classification

Priority claims

US

144267 · 04/28/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

03/05/1985

RPI 750

Conhecimento de parecer técnico

#7.1

06/12/1984

RPI 712

Solicitação de exame técnico

#4.1

06/15/1982

RPI 608

Publicação do pedido de patente

#3.1

01/19/1982

RPI 587

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