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Official data from INPI

APERFEICOAMENTO EM PICADOR DE CANA

ConcedidaInvention Patent

Application data

Number

PI7606656

Type

Invention Patent

Filing

10/05/1976

Publication

-

Progress at the INPI

  1. Filing10/05/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/29/82
  6. Expired07/27/93

The letters patent expired on 07/27/1993: 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: 06/29/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. P. (pessoa física)

Inventors

C. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/29/1982

RPI 610

14.1

02/24/1982

RPI 592

14.1

11/17/1981

RPI 578

Carta-patente expirada

#21.1

07/27/1993

RPI 1182

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