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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8004150

Type

Invention Patent

Filing

07/03/1980

Publication

-

Progress at the INPI

  1. Filing07/03/80
  2. Publication
  3. Examination
  4. Allowance03/27/84
  5. Grant09/25/84
  6. Expired09/19/95

The letters patent expired on 09/19/1995: 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: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. A. (pessoa física)

SE

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Inventors

G. L. (pessoa física)

J. F. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/25/1984

RPI 727

Deferimento

#9.1

03/27/1984

RPI 701

Exigência - art. 36 da LPI

#6.1

11/08/1983

RPI 681

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B04C 3/06; B01D 23/16; B01D 25/36.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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