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Official data from INPI

COMPOSIÇÃO DE RESINA EPÓXI E PROCESSO PARA PROVER RESINAS EPÓXI TENAZES

Em AnáliseInvention Patent

Application data

Number

PI8606779

Type

Invention Patent

Filing

06/23/1986

Publication

10/13/1987

Progress at the INPI

  1. Filing06/23/86
  2. Publication10/13/87
  3. Examination11/22/88
  4. Allowance10/26/93
  5. Grant08/30/94
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 11/22/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

C. A. (pessoa física)

US

D. P. (pessoa física)

US

D. H. (pessoa física)

US

V. M. (pessoa física)

US

Technical data

Priority claims

US

749.078 · 06/26/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/22/1988

RPI 944

Notificação de entrada na fase nacional - PCT

#1.3

10/13/1987

RPI 886

Carta-patente expirada

#21.1

Patente extinta em 23/06/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

03/15/1994

RPI 1215

Deferimento

#9.1

10/26/1993

RPI 1195

Exigência - art. 36 da LPI

#6.1

03/02/1993

RPI 1161

Exigência - art. 36 da LPI

#6.1

01/14/1992

RPI 1102

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