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Official data from INPI

APARELHO PARA FIXAR UMA CAMADA DE MATERIAL FIBROSO EM OUTRA CAMADA DE MATERIAL FIBROSO

Em AnáliseInvention Patent

Application data

Number

PI8703649

Type

Invention Patent

Filing

06/30/1987

Publication

03/22/1988

Progress at the INPI

  1. Filing06/30/87
  2. Publication03/22/88
  3. Examination07/12/88
  4. Allowance08/17/93
  5. Grant05/31/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Thermal Ceramics, Inc.

US

Inventors

F. F. (pessoa física)

US

T. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

06/887.677 · 07/18/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.1

10/24/1989

RPI 992

Solicitação de exame técnico

#4.1

07/12/1988

RPI 925

Publicação do pedido de patente

#3.1

03/22/1988

RPI 909

Pedido de patente depositado

#2.1

10/06/1987

RPI 885

Carta-patente expirada

#21.1

Patente extinta em 30/06/2002

07/29/2008

RPI 1960

Republicação - classificação IPC

#15.11

03/01/1995

RPI 1265

Concessão da patente

#16.1

05/31/1994

RPI 1226

9.1.3

10/26/1993

RPI 1195

Deferimento

#9.1

08/17/1993

RPI 1185

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