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Official data from INPI

SEM TITULO

Arquivada/ExtintaInvention Patent

Application data

Number

PI7404595

Type

Invention Patent

Filing

06/04/1974

Publication

-

Progress at the INPI

  1. Filing06/04/74
  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: 03/27/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Triplex Safety Glass Company Limited

GB

Inventors

E. B. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C03C 27/12; B32B 31/20; B32B 17/10.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

08/25/1992

RPI 1134

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