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Official data from INPI

Excitador de oscilações.

ConcedidaInvention Patent

Application data

Number

PI8001365

Type

Invention Patent

Filing

03/07/1980

Publication

-

Progress at the INPI

  1. Filing03/07/80
  2. Publication
  3. Examination
  4. Allowance12/13/83
  5. Grant06/26/84
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 06/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Wacker Werke Gmbh & Co. Kg.

DE

Inventors

R. F. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

299204.4 · 03/09/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/10/1984

RPI 703

Deferimento

#9.1

12/13/1983

RPI 686

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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