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Official data from INPI

PROCESSO E APARELHO PARA CONTROLAR UM REFINADOR DE FABRICAÇÃO DE PAPEL

Em AnáliseInvention Patent

Application data

Number

PI8600386

Type

Invention Patent

Filing

01/30/1986

Publication

10/14/1986

Progress at the INPI

  1. Filing01/30/86
  2. Publication10/14/86
  3. Examination03/17/87
  4. Allowance01/29/91
  5. Grant09/24/91
  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: 03/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

See this company's full portfolio

Inventors

J. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

696.904 · 01/31/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/17/1987

RPI 856

Publicação do pedido de patente

#3.1

10/14/1986

RPI 834

Pedido de patente depositado

#2.1

07/22/1986

RPI 822

Carta-patente expirada

#21.1

Patente extinta em 30/01/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

05/14/1991

RPI 1067

Deferimento

#9.1

01/29/1991

RPI 1052

Exigência - art. 36 da LPI

#6.1

08/21/1990

RPI 1029

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