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Official data from INPI

MECANISMO DE VÁLVULA APERFEIÇOADO, MECANISMO APERFEIÇOADO NUM APARELHO PARA TRANSPORTAR MATERIAL SÓLIDO EM PARTÍCULAS E APARELHO DE CARREGAMENTO DE LINHA

DeferidaInvention Patent

Application data

Number

PI8602467

Type

Invention Patent

Filing

05/29/1986

Publication

12/29/1987

Progress at the INPI

  1. Filing05/29/86
  2. Publication12/29/87
  3. Examination04/26/88
  4. Allowance09/19/89
  5. Grant05/29/90
  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: 09/19/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fuller Company

US

Inventors

S. L. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/19/1989

RPI 987

Solicitação de exame técnico

#4.1

04/26/1988

RPI 914

Publicação do pedido de patente

#3.1

12/29/1987

RPI 897

Pedido de patente depositado

#2.1

12/09/1986

RPI 842

Carta-patente expirada

#21.1

Patente extinta em 29/05/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

01/16/1990

RPI 1002

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