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Official data from INPI

APERFEIÇOAMENTO DO DISPOSITIVO COM DERIVADOR

Em AnáliseInvention Patent
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Application data

Number

PI8201643

Type

Invention Patent

Filing

03/24/1982

Publication

08/03/1982
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Progress at the INPI

  1. Filing03/24/82
  2. Publication08/03/82
  3. Examination09/21/82
  4. Refused09/17/85
  5. Grant
  6. In force

The application was refused on 09/17/1985 and the appeal did not change the decision. The invention was never patented and the technology is in the public domain in Brazil.

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Latest action published by the INPI: 09/17/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. S. (pessoa física)

SP, BR

Inventors

H. S. (pessoa física)

BR

Technical data

IPC Classification

F16L 55/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

09/17/1985

RPI 778

Petição de recurso

#12.2

09/25/1984

RPI 727

Indeferimento

#9.2

06/26/1984

RPI 714

Solicitação de exame técnico

#4.1

09/21/1982

RPI 622

Publicação antecipada

#3.2

08/03/1982

RPI 615

Pedido de patente depositado

#2.1

05/11/1982

RPI 603

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