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Official data from INPI

PROCESSO DE OBTENÇÃO DE UM OLIGÔMERO DE URETANO DE ÉTER VINÍLICO E PROCESSO DE PREPARAÇÃO DE UM POLÍMERO CURADO EMPREGADO COMO REVESTIMENTO

Arquivada/ExtintaInvention PatentPCT · US1990002385

Application data

Number

PI9007343

Type

Invention Patent

Filing

04/30/1990

Publication

04/21/1992

PCT

US1990002385

Progress at the INPI

  1. Filing04/30/90
  2. Publication04/21/92
  3. Examination07/06/93
  4. Allowance11/03/98
  5. Grant08/24/99
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allied-Signal Inc

US

See this company's full portfolio

Inventors

J. S. (pessoa física)

US

S. L. (pessoa física)

US

Technical data

Priority claims

US

350.068 · 05/10/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 30/04/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

08/24/1999

RPI 1494

Deferimento

#9.1

11/03/1998

RPI 1452

Exigência - art. 36 da LPI

#6.1

06/16/1998

RPI 1434

Solicitação de exame técnico

#4.1

07/06/1993

RPI 1179

Notificação de entrada na fase nacional - PCT

#1.3

04/21/1992

RPI 1116

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