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Official data from INPI

PROCESSO E APARELHO PARA FABRICAR FITAS ORIENTADAS DE CAMADAS MÚLTIPLAS

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906546

Type

Invention Patent

Filing

12/18/1989

Publication

09/04/1990

Progress at the INPI

  1. Filing12/18/89
  2. Publication09/04/90
  3. Examination02/13/91
  4. Allowance03/01/95
  5. Grant09/26/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Windmoeller & Hoelscher

DE

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Inventors

F. B. (pessoa física)

DE

K. L. (pessoa física)

DE

R. K. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 42 764.8 · 12/19/1988

DE

P 39 09 092.2 · 03/20/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/12/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

09/26/1995

RPI 1295

Notificação para pagamento de retribuição

#13.1

07/18/1995

RPI 1285

Republicação - classificação IPC

#15.11

05/02/1995

RPI 1274

Deferimento

#9.1

03/01/1995

RPI 1265

Solicitação de exame técnico

#4.1

02/13/1991

RPI 1054

Publicação do pedido de patente

#3.1

09/04/1990

RPI 1031

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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