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Official data from INPI

PROCESSO PARA A PRODUCAO DE LAJES OU DE MATERIAL SEMELHANTE

Em AnáliseInvention Patent

Application data

Number

PI7804955

Type

Invention Patent

Filing

08/03/1977

Publication

-

Progress at the INPI

  1. Filing08/03/77
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant03/29/83
  6. Expired12/14/93

The letters patent expired on 12/14/1993: 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: 11/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. G. (pessoa física)

Inventors

M. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

18.8

11/21/1989

RPI 996

Anuidade - prazo legal encerrado

#18.2

08/29/1989

RPI 984

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

6.2

01/26/1982

RPI 588

Carta-patente expirada

#21.1

12/14/1993

RPI 1202

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