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Official data from INPI

PROCESSO PARA FORMAR UMA RESINA DE POLISSULFETO CAPEADA COM EPÓXIDO

Prazo de SigiloInvention Patent

Application data

Number

PI8902928

Type

Invention Patent

Filing

06/16/1989

Publication

02/06/1990

Progress at the INPI

  1. Filing06/16/89
  2. Publication02/06/90
  3. Examination10/23/90
  4. Allowance09/08/98
  5. Grant12/29/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 08/01/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Morton Thiokol, Inc

US

See this company's full portfolio

Inventors

D. B. (pessoa física)

US

J. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

208,336 · 06/17/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

08/01/1989

RPI 980

Carta-patente expirada

#21.1

Patente extinta em 16/06/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

09/08/1998

RPI 1446

Exigência - art. 36 da LPI

#6.1

05/12/1998

RPI 1429

Exigência - art. 36 da LPI

#6.1

04/08/1997

RPI 1375

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

Publicação do pedido de patente

#3.1

02/06/1990

RPI 1005

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