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Official data from INPI

MECANISMO E PROCESSAMENTO DE POLPA DE PAPEL PARA PENEIRAMENTO DE GRANDES QUANTIDADES DE LASCAS DE MADEIRA

Arquivada/ExtintaInvention PatentPCT · US1988002026

Application data

Number

PI8807630

Type

Invention Patent

Filing

06/08/1988

Publication

05/29/1990

PCT

US1988002026

Progress at the INPI

  1. Filing06/08/88
  2. Publication05/29/90
  3. Examination10/02/90
  4. Allowance10/15/91
  5. Grant09/29/92
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

J. B. (pessoa física)

Technical data

IPC Classification

Priority claims

US

079,858 · 07/30/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

09/29/1992

RPI 1139

Notificação para pagamento de retribuição

#13.1

02/18/1992

RPI 1107

Deferimento

#9.1

10/15/1991

RPI 1089

Exigência - art. 36 da LPI

#6.1

04/30/1991

RPI 1065

Solicitação de exame técnico

#4.1

10/02/1990

RPI 1035

Notificação de entrada na fase nacional - PCT

#1.3

05/29/1990

RPI 1020

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