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Official data from INPI

SEÇÀO SECADORA DE TRAMA DE PAPEL E SEU PROCESSO DE OPERAÇÀO

Arquivada/ExtintaInvention PatentPCT · US1986000799

Application data

Number

PI8607356

Type

Invention Patent

Filing

04/21/1986

Publication

08/15/1989

PCT

US1986000799

Progress at the INPI

  1. Filing04/21/86
  2. Publication08/15/89
  3. Examination04/10/90
  4. Allowance05/26/92
  5. Grant03/30/93
  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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

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Inventors

D. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

08/15/1989

RPI 982

Carta-patente expirada

#21.1

Patente extinta em 21/04/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

03/30/1993

RPI 1165

Notificação para pagamento de retribuição

#13.1

10/20/1992

RPI 1142

Deferimento

#9.1

05/26/1992

RPI 1121

Exigência - art. 36 da LPI

#6.1

10/15/1991

RPI 1089

15.18

12/18/1990

RPI 1046

Retificação

#15.3

10/23/1990

RPI 1038

Solicitação de exame técnico

#4.1

04/10/1990

RPI 1013

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