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Official data from INPI

UNIDADE SECADORA DE USO RESIDENCIAL

Em AnáliseInvention Patent

Application data

Number

PI7607533

Type

Invention Patent

Filing

11/11/1976

Publication

-

Progress at the INPI

  1. Filing11/11/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  6. Expired09/21/93

The letters patent expired on 09/21/1993: 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: 05/07/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. P. (pessoa física)

Inventors

P. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

05/07/1985

RPI 759

Pedido de licença compulsória

#20.1

02/07/1984

RPI 694

Pedido de licença compulsória

#20.1

01/17/1984

RPI 691

Pedido de licença compulsória

#20.1

01/10/1984

RPI 690

337

09/06/1983

RPI 672

201

02/16/1983

RPI 643

Pedido de licença voluntária

#17.1

07/20/1982

RPI 613

Concessão da patente

#16.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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