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Official data from INPI

PROCESSO PARA A FABRICAÇÃO DE UMA CORREIA PARA SER UTILIZADA NAS PRENSAS DE ESTRANGULAMENTO (SAPATA) AMPLIADO DE UMA MÁQUINA DE FABRICAÇÃO DE PAPEL

PublicadaInvention Patent

Application data

Number

PI8901964

Type

Invention Patent

Filing

04/26/1989

Publication

12/05/1989

Progress at the INPI

  1. Filing04/26/89
  2. Publication12/05/89
  3. Examination10/23/90
  4. Allowance09/12/95
  5. Grant04/30/96
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

See this company's full portfolio

Inventors

W. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

188.034 · 04/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/05/1989

RPI 998

Pedido de patente depositado

#2.1

06/06/1989

RPI 972

Carta-patente expirada

#21.1

Patente extinta em 26/04/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/12/1995

RPI 1293

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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