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Official data from INPI

SEPARADOR DE SUJEIRA PARA DISPOSITIVOS DE CARDA

ConcedidaInvention Patent

Application data

Number

PI7906781

Type

Invention Patent

Filing

10/23/1978

Publication

-

Progress at the INPI

  1. Filing10/23/78
  2. Publication
  3. Examination
  4. Allowance05/10/83
  5. Grant11/29/83
  6. Expired04/25/95

The letters patent expired on 04/25/1995: 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: 11/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOLLINGSWORTH GMBH

Inventors

L. W. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/10/1983

RPI 655

Exigência - art. 36 da LPI

#6.1

04/20/1982

RPI 600

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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