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Official data from INPI

PROCESSO E DISPOSITIVO PARA A LIMPEZA DE ROTORES DE FIACAO EM DISPOSITIVOS DE FIACAO DE EXTREMIDADE ABERTA

Concessão AnuladaInvention Patent

Application data

Number

PI7805011

Type

Invention Patent

Filing

08/05/1977

Publication

-

Progress at the INPI

  1. Filing08/05/77
  2. Publication
  3. Examination
  4. Allowance08/09/83
  5. Grant02/28/84
  6. Expired12/14/93

The letters patent expired on 12/14/1993: 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: 05/15/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SCHUBERT & SALZER MASCHINEN

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Inventors

B. E. (pessoa física)

B. E. (pessoa física)

W. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

05/15/1984

RPI 708

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

11/29/1983

RPI 684

Deferimento

#9.1

08/09/1983

RPI 668

Exigência - art. 36 da LPI

#6.1

10/26/1982

RPI 627

6.2

12/01/1981

RPI 580

Carta-patente expirada

#21.1

12/14/1993

RPI 1202

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