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Official data from INPI

ESTRUTURA DE PENEIRAMENTO

ConcedidaInvention Patent

Application data

Number

PI7903168

Type

Invention Patent

Filing

07/26/1978

Publication

-

Progress at the INPI

  1. Filing07/26/78
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant07/26/83
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STEINHAUS GMBH

Inventors

W. K. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/24/1983

RPI 657

Deferimento

#9.1

01/11/1983

RPI 638

15.0

05/18/1982

RPI 604

Exigência - art. 36 da LPI

#6.1

04/13/1982

RPI 599

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

18.4

10/01/1991

RPI 1087

18.1

04/17/1990

RPI 1014

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