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Official data from INPI

APERFEICOAMENTOS EM JUNTAS TERMINAIS PARA CABOS DE FORCA COM DIELETRICO FLUIDO

Em AnáliseInvention Patent
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Application data

Number

PI7700280

Type

Invention Patent

Filing

01/20/1976

Publication

-
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Progress at the INPI

  1. Filing01/20/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/29/81
  6. Expired09/21/93

The letters patent expired on 09/21/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 02/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. W. (pessoa física)

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Inventors

C. R. (pessoa física)

P. R. (pessoa física)

R. R. (pessoa física)

Technical data

IPC Classification

H01R 43/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

02/21/1989

RPI 957

20.7

12/31/1985

RPI 793

20.4

12/24/1985

RPI 792

20.4

12/10/1985

RPI 790

20.6

09/17/1985

RPI 778

20.6

09/25/1984

RPI 727

Concessão da patente

#16.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

09/21/1993

RPI 1190

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