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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI7407851

Type

Invention Patent

Filing

09/20/1974

Publication

-

Progress at the INPI

  1. Filing09/20/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant05/12/81
  6. Expired11/24/92

The letters patent expired on 11/24/1992: 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: 05/12/1981. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Billion S/A

FR

Inventors

E. B. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/12/1981

RPI 551

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B29F 1/06.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

11/24/1992

RPI 1147

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