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Official data from INPI

SEM TITULO

Arquivada/ExtintaInvention Patent

Application data

Number

PI7403837

Type

Invention Patent

Filing

05/10/1974

Publication

-

Progress at the INPI

  1. Filing05/10/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Expired08/25/92

The letters patent expired on 08/25/1992: 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: 03/20/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S.K.M.

FR

Inventors

E. B. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B05B 7/06; B05B 5/02.

03/20/2018

RPI 2463

Carta-patente expirada

#21.1

08/25/1992

RPI 1134

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