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Official data from INPI

APERFEICOAMENTO EM BARRIL DE PLASTICO

ConcedidaInvention Patent

Application data

Number

PI7603277

Type

Invention Patent

Filing

10/04/1975

Publication

-

Progress at the INPI

  1. Filing10/04/75
  2. Publication
  3. Examination
  4. Allowance
  5. Grant11/30/82
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 11/30/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. K. (pessoa física)

Inventors

H. T. (pessoa física)

H. A. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

09/14/1982

RPI 621

110

05/25/1982

RPI 605

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

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