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Official data from INPI

PROCESSOS A BAIXA TEMPERATURA PARA PREPARAR UM LÁTEX HOMO E CO-ENXERTADO COM FUNCIONALIDADE DE ISOCIANATO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9104892

Type

Invention Patent

Filing

11/11/1991

Publication

06/23/1992

Progress at the INPI

  1. Filing11/11/91
  2. Publication06/23/92
  3. Examination05/31/94
  4. Allowance09/08/99
  5. Grant03/08/00
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Cyanamid Company

US

See this company's full portfolio

Inventors

H. L. (pessoa física)

US

Technical data

Priority claims

US

07/609,496 · 11/02/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 11/11/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

03/08/2000

RPI 1522

Deferimento

#9.1

09/08/1999

RPI 1496

Conhecimento de parecer técnico

#7.1

02/17/1999

RPI 1467

15.9

05/31/1994

RPI 1226

Solicitação de exame técnico

#4.1

05/31/1994

RPI 1226

Publicação do pedido de patente

#3.1

06/23/1992

RPI 1125

Pedido de patente depositado

#2.1

12/17/1991

RPI 1098

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