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Official data from INPI

Dispositivo de extrusão.

Concessão AnuladaInvention Patent

Application data

Number

PI8004484

Type

Invention Patent

Filing

07/18/1980

Publication

-

Progress at the INPI

  1. Filing07/18/80
  2. Publication
  3. Examination
  4. Allowance12/20/83
  5. Grant06/26/84
  6. Expired09/19/95

The letters patent expired on 09/19/1995: 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: 09/25/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gebruder Bhler Ag.

CH

Inventors

H. S. (pessoa física)

S. K. (pessoa física)

W. H. (pessoa física)

Technical data

IPC Classification

Priority claims

CH

6721/79-0 · 07/19/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

09/25/1984

RPI 727

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

08/23/1983

RPI 670

Carta-patente expirada

#21.1

09/19/1995

RPI 1294

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