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Official data from INPI

MONTAGEM DE UM ELETRODO DE DESCARGA PARA UM PRECIPITADOR ELETROSTATICO

Concessão AnuladaInvention Patent

Application data

Number

PI7802290

Type

Invention Patent

Filing

04/18/1977

Publication

-

Progress at the INPI

  1. Filing04/18/77
  2. Publication
  3. Examination
  4. Allowance07/05/83
  5. Grant12/27/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 03/20/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

JOY MFG CO

Inventors

C. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

03/20/1984

RPI 700

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

11/08/1983

RPI 681

Deferimento

#9.1

07/05/1983

RPI 663

Exigência - art. 36 da LPI

#6.1

07/27/1982

RPI 614

6.2

01/19/1982

RPI 587

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

Pedido de licença compulsória

#20.1

08/04/1992

RPI 1131

Pedido de licença compulsória

#20.1

07/28/1992

RPI 1130

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