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Official data from INPI

PENEIRA DE CAMADA DUPLA PARA A SECAO FORMADORA DE FOLHA DE UMA MAQUINA DE FABRICACAO DE PAPEL

ConcedidaInvention Patent

Application data

Number

PI8106086

Type

Invention Patent

Filing

09/26/1980

Publication

06/08/1982

Progress at the INPI

  1. Filing09/26/80
  2. Publication06/08/82
  3. Examination06/05/84
  4. Allowance09/10/85
  5. Grant04/29/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 04/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WANGNER GMBH CO KG HERMANN

Inventors

B. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/29/1986

RPI 810

Notificação para pagamento de retribuição

#13.1

01/14/1986

RPI 795

Deferimento

#9.1

09/10/1985

RPI 777

Conhecimento de parecer técnico

#7.1

12/04/1984

RPI 737

Solicitação de exame técnico

#4.1

06/05/1984

RPI 711

Publicação do pedido de patente

#3.1

06/08/1982

RPI 607

Pedido de patente depositado

#2.1

11/10/1981

RPI 577

Carta-patente expirada

#21.1

Patente extinta em 23/09/96

08/19/2008

RPI 1963

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