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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UMA COMPOSIÇÃO DE RESINA EPÓXI E LAMINADO

Em AnáliseInvention PatentPCT · US1985000887

Application data

Number

PI8506740

Type

Invention Patent

Filing

05/15/1985

Publication

09/23/1986

PCT

US1985000887

Progress at the INPI

  1. Filing05/15/85
  2. Publication09/23/86
  3. Examination12/22/87
  4. Allowance12/03/91
  5. Grant10/27/92
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 12/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ciba Specialty Chemicals Holding Inc. - Ciba Spezialitätenchemie Holding AG - Ciba Spécialités Chimiques Holding SA

CH

THE DOW CHEMICAL COMPANY

US

See this company's full portfolio

Inventors

B. J. (pessoa física)

US

B. J. (pessoa física)

US

W. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

610.896 · 05/16/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/22/1987

RPI 896

Notificação de entrada na fase nacional - PCT

#1.3

09/23/1986

RPI 831

Carta-patente expirada

#21.1

Patente extinta em 15/05/2000

07/15/2008

RPI 1958

Transferência deferida

#25.1

Transferido de: The Dow Chemical Company.

10/05/1999

RPI 1500

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

04/21/1992

RPI 1116

Deferimento

#9.1

12/03/1991

RPI 1096

Exigência - art. 36 da LPI

#6.1

05/14/1991

RPI 1067

Exigência - art. 36 da LPI

#6.1

11/20/1990

RPI 1042

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