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Official data from INPI

PRODUTO FIBROSO LIGADO TERMICAMENTE

Em AnáliseInvention Patent
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Application data

Number

PI8702411

Type

Invention Patent

Filing

04/29/1987

Publication

02/17/1988
View on INPI

Progress at the INPI

  1. Filing04/29/87
  2. Publication02/17/88
  3. Examination06/14/88
  4. Allowance07/04/95
  5. Grant01/30/96
  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.

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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

C. H. (pessoa física)

US

Technical data

IPC Classification

C04B 35/80

Priority claims

US

06/857.699 · 04/29/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

14.1

10/24/1989

RPI 992

Solicitação de exame técnico

#4.1

06/14/1988

RPI 921

Publicação do pedido de patente

#3.1

02/17/1988

RPI 904

Pedido de patente depositado

#2.1

08/04/1987

RPI 876

Carta-patente expirada

#21.1

Patente extinta em 29/04/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

01/30/1996

RPI 1313

Notificação para pagamento de retribuição

#13.1

11/14/1995

RPI 1302

Republicação - classificação IPC

#15.11

09/26/1995

RPI 1295

Deferimento

#9.1

07/04/1995

RPI 1283

Exigência - art. 36 da LPI

#6.1

12/20/1994

RPI 1255

Exigência - art. 36 da LPI

#6.1

11/09/1993

RPI 1197

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