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Official data from INPI

COMPOSIÇÃO ELASTOMÉRICA TERMOPLÁSTICA DINAMICAMENTE VULCANIZÁVEL, E, PROCESSO PARA PREPARAR UMA COMPOSIÇÃO DINAMICAMENTE VULCANIZÁVEL

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9001820

Type

Invention Patent

Filing

04/18/1990

Publication

06/11/1991
View on INPI

Progress at the INPI

  1. Filing04/18/90
  2. Publication06/11/91
  3. Examination08/17/93
  4. Allowance09/14/99
  5. Grant02/08/00
  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.

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Latest action published by the INPI: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Advanced Elastomer Systems, L.P

US

Exxon Chemical Patents, Inc

US

See this company's full portfolio

Inventors

D. H. (pessoa física)

US

R. P. (pessoa física)

US

Technical data

IPC Classification

C08L 23/28

Priority claims

US

340,483 · 04/19/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/04/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

02/08/2000

RPI 1518

Deferimento

#9.1

09/14/1999

RPI 1497

Exigência - art. 36 da LPI

#6.1

03/02/1999

RPI 1469

Exigência - art. 36 da LPI

#6.1

05/12/1998

RPI 1429

Solicitação de exame técnico

#4.1

08/17/1993

RPI 1185

14.1

05/18/1993

RPI 1172

Publicação do pedido de patente

#3.1

06/11/1991

RPI 1071

Pedido de patente depositado

#2.1

08/14/1990

RPI 1028

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