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Official data from INPI

APERFEICOAMENTOS EM PARAFUSO DE MONTAGEM DE CAIXAS

Em AnáliseInvention Patent

Application data

Number

PI7606428

Type

Invention Patent

Filing

09/27/1976

Publication

-

Progress at the INPI

  1. Filing09/27/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant08/17/82
  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: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. T. (pessoa física)

Inventors

K. T. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

09/02/1986

RPI 828

Concessão da patente

#16.1

08/17/1982

RPI 617

Notificação para pagamento de retribuição

#13.1

12/08/1981

RPI 581

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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