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Official data from INPI

APERFEICOAMENTO EM PROCESSO E APARELHO PARA ALIMENTAR UM NUCLEO CONTINUO A UMA ESTACAO ENROLADORA NA FABRICACAO DE ELEMENTOS ACOPLADORES ENROLADOS PARA FECHOS CORREDICOS,JUNTAMENTE COM O NUCLEO COLOCADO NO MESMO

ConcedidaInvention Patent

Application data

Number

PI7808638

Type

Invention Patent

Filing

12/30/1977

Publication

-

Progress at the INPI

  1. Filing12/30/77
  2. Publication
  3. Examination
  4. Allowance06/22/82
  5. Grant01/25/83
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 01/25/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Y. K. (pessoa física)

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Inventors

O. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/25/1983

RPI 640

Notificação para pagamento de retribuição

#13.1

10/05/1982

RPI 624

Deferimento

#9.1

06/22/1982

RPI 609

6.2

12/15/1981

RPI 582

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

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