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Official data from INPI

ESTEIRA DE ELOS ESPIRALADOS

Em AnáliseInvention Patent

Application data

Number

PI8705972

Type

Invention Patent

Filing

11/06/1987

Publication

06/14/1988

Progress at the INPI

  1. Filing11/06/87
  2. Publication06/14/88
  3. Examination12/13/88
  4. Allowance12/20/94
  5. Grant07/25/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 12/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Siteg Siebtechnik Gmbh

DE

Inventors

J. L. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

DE

P 36 38 036.9 · 11/07/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/13/1988

RPI 947

Publicação do pedido de patente

#3.1

06/14/1988

RPI 921

Pedido de patente depositado

#2.1

03/08/1988

RPI 907

Carta-patente expirada

#21.1

Patente extinta em 06/11/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

05/02/1995

RPI 1274

Deferimento

#9.1

12/20/1994

RPI 1255

13.2

12/13/1994

RPI 1254

Notificação para pagamento de retribuição

#13.1

11/08/1994

RPI 1249

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