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Official data from INPI

DISPOSITIVO DE CONTROLE DE TEMPO E PROCESSO PARA RETARDAR A TUAÇÃO DE COMUTADORES ELÉTRICOS.

ConcedidaInvention Patent

Application data

Number

PI8300927

Type

Invention Patent

Filing

02/28/1983

Publication

04/17/1984

Progress at the INPI

  1. Filing02/28/83
  2. Publication04/17/84
  3. Examination08/14/84
  4. Allowance08/20/85
  5. Grant05/27/86
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Eaton Technologies Ltda.

SP, BR

Emhart Industries, Inc.

US

See this company's full portfolio

Inventors

W. E. (pessoa física)

Technical data

IPC Classification

Priority claims

US

06/398.403 · 07/14/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

12/24/1985

RPI 792

Deferimento

#9.1

08/20/1985

RPI 774

Exigência - art. 36 da LPI

#6.1

03/26/1985

RPI 753

Solicitação de exame técnico

#4.1

08/14/1984

RPI 721

Publicação do pedido de patente

#3.1

04/17/1984

RPI 704

Pedido de patente depositado

#2.1

04/12/1983

RPI 651

Carta-patente expirada

#21.1

Patente extinta em 28/02/98

07/01/2008

RPI 1956

20.4

01/02/1996

RPI 1309

20.7

01/02/1996

RPI 1309

Pedido de licença compulsória

#20.1

12/26/1995

RPI 1308

Pedido de licença compulsória

#20.1

11/03/1992

RPI 1144

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