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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI8006930

Type

Invention Patent

Filing

10/29/1980

Publication

-

Progress at the INPI

  1. Filing10/29/80
  2. Publication
  3. Examination08/16/83
  4. Allowance09/18/84
  5. Grant03/26/85
  6. Expired11/21/95

The letters patent expired on 11/21/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/09/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Prad Research And Development N.V.

NL

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Inventors

P. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

111

06/09/1987

RPI 868

Concessão da patente

#16.1

03/26/1985

RPI 753

Deferimento

#9.1

09/18/1984

RPI 726

Exigência - art. 36 da LPI

#6.1

01/10/1984

RPI 690

Solicitação de exame técnico

#4.1

08/16/1983

RPI 669

Carta-patente expirada

#21.1

11/21/1995

RPI 1303

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