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Official data from INPI

ENROLAMENTO DE CAMADAS PARA TRANSFORMADORES

Em AnáliseInvention Patent

Application data

Number

PI8503642

Type

Invention Patent

Filing

08/01/1985

Publication

05/06/1986

Progress at the INPI

  1. Filing08/01/85
  2. Publication05/06/86
  3. Examination02/17/88
  4. Allowance10/30/90
  5. Grant05/28/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Siemens Ltda

SP, BR

See this company's full portfolio

Inventors

H. M. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 34 28 613.6 · 08/02/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.1

09/06/1988

RPI 933

Solicitação de exame técnico

#4.1

02/17/1988

RPI 904

Publicação do pedido de patente

#3.1

05/06/1986

RPI 811

Pedido de patente depositado

#2.1

10/08/1985

RPI 781

Carta-patente expirada

#21.1

Patente extinta em 01/08/2000

07/15/2008

RPI 1958

Alteração de nome deferida

#25.4

01/06/1998

RPI 1411

Alteração de sede deferida

#25.7

01/06/1998

RPI 1411

Pedido de licença compulsória

#20.1

01/16/1996

RPI 1311

20.11

10/11/1994

RPI 1245

20.11

05/24/1994

RPI 1225

Pedido de licença compulsória

#20.1

11/17/1992

RPI 1146

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

02/13/1991

RPI 1054

Deferimento

#9.1

10/30/1990

RPI 1039

6.2

01/02/1990

RPI 1000

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