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Official data from INPI

MATERIAL E PAINEL DE PAREDE COMPÓSITOS E PROCESSOS PARA A FABRICAÇÃO DOS MESMOS

Arquivada/ExtintaInvention PatentPCT · US1989005011

Application data

Number

PI8907778

Type

Invention Patent

Filing

11/07/1989

Publication

10/22/1991

PCT

US1989005011

Progress at the INPI

  1. Filing11/07/89
  2. Publication10/22/91
  3. Examination09/29/92
  4. Allowance01/28/97
  5. Grant09/30/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

United States Gypsum Company

US

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Inventors

M. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

273,416 · 11/18/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 07/11/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

09/30/1997

RPI 1400

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

01/28/1997

RPI 1365

Exigência - art. 36 da LPI

#6.1

02/27/1996

RPI 1317

Solicitação de exame técnico

#4.1

09/29/1992

RPI 1139

Notificação de entrada na fase nacional - PCT

#1.3

10/22/1991

RPI 1090

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