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Official data from INPI

DISPOSITIVO DE AQUECIMENTO ELÉTRICO E PROCESSO DE FABRICAÇÃO DE DISPOSITIVO DE AQUECIMENTO ELÉTRICO

Em AnáliseInvention Patent
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Application data

Number

PI7905203

Type

Invention Patent

Filing

08/10/1979

Publication

-
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Progress at the INPI

  1. Filing08/10/79
  2. Publication
  3. Examination04/05/83
  4. Allowance08/07/84
  5. Grant03/26/85
  6. Expired04/18/95

The letters patent expired on 04/18/1995: 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: 12/23/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

US

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Inventors

R. F. (pessoa física)

US

Technical data

IPC Classification

H05B 3/12

Priority claims

US

932,552 · 08/10/1978

US

933,897 · 08/10/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

12/23/1986

RPI 844

20.9

05/27/1986

RPI 814

Concessão da patente

#16.1

03/26/1985

RPI 753

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

02/28/1984

RPI 697

Exigência - art. 36 da LPI

#6.1

09/27/1983

RPI 675

Solicitação de exame técnico

#4.1

04/05/1983

RPI 650

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

20.4

06/15/1993

RPI 1176

Pedido de licença compulsória

#20.1

06/08/1993

RPI 1175

20.10

06/08/1993

RPI 1175

Pedido de licença compulsória

#20.1

03/30/1993

RPI 1165

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