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Official data from INPI

COMPOSIÇÃO DE BORRACHA DE POLIACRILATO

Prazo de SigiloInvention Patent
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Application data

Number

PI8901055

Type

Invention Patent

Filing

03/07/1989

Publication

10/09/1990
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Progress at the INPI

  1. Filing03/07/89
  2. Publication10/09/90
  3. Examination07/09/91
  4. Allowance08/27/96
  5. Grant04/29/97
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The B.F. Goodrich Company

US

Zeon Chemicals USA, Inc

US

See this company's full portfolio

Inventors

R. D. (pessoa física)

US

Technical data

IPC Classification

C08K 5/17C08K 5/21C08L 13/00C08L 15/02

Priority claims

US

254,517 · 10/06/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/25/1989

RPI 966

Carta-patente expirada

#21.1

Patente extinta em 07/03/2004

12/15/2009

RPI 2032

Concessão da patente

#16.1

04/29/1997

RPI 1378

Notificação para pagamento de retribuição

#13.1

03/25/1997

RPI 1373

Deferimento

#9.1

08/27/1996

RPI 1343

Exigência - art. 36 da LPI

#6.1

12/12/1995

RPI 1306

Exigência - art. 36 da LPI

#6.1

10/04/1994

RPI 1244

14.1

02/16/1993

RPI 1159

Solicitação de exame técnico

#4.1

07/09/1991

RPI 1075

Publicação do pedido de patente

#3.1

10/09/1990

RPI 1036

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