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Official data from INPI

PROCESSO SEM PÓS-CURA PARA CURAR BORRACHA DE POLIACRILATO

PublicadaInvention Patent

Application data

Number

PI8804992

Type

Invention Patent

Filing

09/27/1988

Publication

05/02/1989

Progress at the INPI

  1. Filing09/27/88
  2. Publication05/02/89
  3. Examination06/11/91
  4. Allowance01/21/98
  5. Grant08/25/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: 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: 05/02/1989. 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

F. W. (pessoa física)

US

Technical data

Priority claims

US

101,883 · 09/28/1987

US

227,396 · 08/04/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/02/1989

RPI 967

Pedido de patente depositado

#2.1

02/08/1989

RPI 955

Carta-patente expirada

#21.1

Patente extinta em 27/09/2008

12/18/2012

RPI 2189

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

01/21/1998

RPI 1413

Exigência - art. 36 da LPI

#6.1

09/24/1996

RPI 1347

Exigência - art. 36 da LPI

#6.1

10/11/1994

RPI 1245

14.1

02/16/1993

RPI 1159

Solicitação de exame técnico

#4.1

06/11/1991

RPI 1071

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