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Official data from INPI

VESTIMENTA PARA MÁQUINA DE PAPEL EM FORMA DE UMA CORREIA DE ELOS EM ESPIRAL COBERTA DE CARDA

Em AnáliseInvention Patent

Application data

Number

PI8602423

Type

Invention Patent

Filing

05/19/1986

Publication

03/17/1987

Progress at the INPI

  1. Filing05/19/86
  2. Publication03/17/87
  3. Examination06/16/87
  4. Allowance06/25/91
  5. Grant04/28/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 06/16/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hermann Wangner GmbH & Co. KG

DE

Inventors

G. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

3528363.7 · 08/07/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Publicação do pedido de patente

#3.1

03/17/1987

RPI 856

Pedido de patente depositado

#2.1

11/25/1986

RPI 840

Carta-patente expirada

#21.1

Patente extinta em 19/05/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

04/28/1992

RPI 1117

Notificação para pagamento de retribuição

#13.1

10/22/1991

RPI 1090

Deferimento

#9.1

06/25/1991

RPI 1073

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