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Official data from INPI

PROCESSO PARA A COPOLIMERIZAÇÃO DE UMA MISTURA DE MONÔMEROS COMPREENDENDO PROPILENO E 1-BUTENO

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9005503

Type

Invention Patent

Filing

10/30/1990

Publication

09/17/1991
View on INPI

Progress at the INPI

  1. Filing10/30/90
  2. Publication09/17/91
  3. Examination06/29/93
  4. Allowance09/01/98
  5. Grant04/27/99
  6. Expired05/21/13

The letters patent expired on 05/21/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Union Carbide Chemicals and Plastics Company Inc.

US

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Inventors

F. T. (pessoa física)

US

H. F. (pessoa física)

US

I. B. (pessoa física)

US

Technical data

IPC Classification

C08F 210/06C08F 210/08C08F 4/60

Priority claims

US

429.611 · 10/31/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 30/10/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

04/27/1999

RPI 1477

Deferimento

#9.1

09/01/1998

RPI 1445

Exigência - art. 36 da LPI

#6.1

02/27/1996

RPI 1317

Exigência - art. 36 da LPI

#6.1

08/01/1995

RPI 1287

Solicitação de exame técnico

#4.1

06/29/1993

RPI 1178

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/30/1991

RPI 1065

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