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Official data from INPI

ELEMENTO ALONGADO DE CONCRETO PROTENDIDO POR ELEMENTOS ESTRUTURAIS DISTENDIDOS ANTES DA CONCRETAGEM

ConcedidaInvention Patent

Application data

Number

PI7604653

Type

Invention Patent

Filing

07/17/1975

Publication

-

Progress at the INPI

  1. Filing07/17/75
  2. Publication
  3. Examination
  4. Allowance12/15/81
  5. Grant08/31/82
  6. Expired07/20/93

The letters patent expired on 07/20/1993: 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: 08/31/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STUP

Inventors

M. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/31/1982

RPI 619

Notificação para pagamento de retribuição

#13.1

04/27/1982

RPI 601

Deferimento

#9.1

12/15/1981

RPI 582

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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