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Official data from INPI

MÉTODO PARA A PREPARAÇÃO DE UMA COMPOSIÇÃO DE OLEFINA TERMOPLÁSTICA.

Arquivada/ExtintaInvention PatentPCT · US1989004745

Application data

Number

PI8907741

Type

Invention Patent

Filing

10/25/1989

Publication

08/27/1991

PCT

US1989004745

Progress at the INPI

  1. Filing10/25/89
  2. Publication08/27/91
  3. Examination12/17/91
  4. Allowance04/06/99
  5. Grant11/16/99
  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: 12/26/2012. 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

L. D. (pessoa física)

BE

R. P. (pessoa física)

US

S. C. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

US

264.487 · 10/28/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 16/11/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

11/16/1999

RPI 1506

Deferimento

#9.1

04/06/1999

RPI 1474

Exigência - art. 36 da LPI

#6.1

08/11/1998

RPI 1442

Exigência - art. 36 da LPI

#6.1

02/27/1996

RPI 1317

Exigência - art. 36 da LPI

#6.1

07/18/1995

RPI 1285

14.1

04/20/1993

RPI 1168

Solicitação de exame técnico

#4.1

12/17/1991

RPI 1098

Notificação de entrada na fase nacional - PCT

#1.3

08/27/1991

RPI 1082

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