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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UMA COMPOSIÇÃO DE FRITA DE VIDRO ISENTA DE CHUMBO

PublicadaInvention Patent

Application data

Number

PI8705807

Type

Invention Patent

Filing

10/30/1987

Publication

06/14/1988

Progress at the INPI

  1. Filing10/30/87
  2. Publication06/14/88
  3. Examination09/18/90
  4. Allowance11/23/93
  5. Grant06/28/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ciba-Geigy AG

CH

Ciba SC Holding AG

CH

Ciba Specialty Chemicals Holding Inc. - Ciba Spezialitatenchemie Holding AG - Ciba Specialités Chimiques Holding SA

CH

See this company's full portfolio

Inventors

B. F. (pessoa física)

US

D. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

926.072 · 11/03/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

06/14/1988

RPI 921

Pedido de patente depositado

#2.1

02/09/1988

RPI 903

Carta-patente expirada

#21.1

Patente extinta em 30/10/2002

07/29/2008

RPI 1960

Alteração de nome deferida

#25.4

Alterado de: Ciba SC Holding Ag

12/08/1998

RPI 1457

Transferência deferida

#25.1

Transferido de: Ciba Geigy Ag

11/10/1998

RPI 1453

Concessão da patente

#16.1

06/28/1994

RPI 1230

Notificação para pagamento de retribuição

#13.1

04/12/1994

RPI 1219

Deferimento

#9.1

11/23/1993

RPI 1199

Conhecimento de parecer técnico

#7.1

04/13/1993

RPI 1167

Solicitação de exame técnico

#4.1

09/18/1990

RPI 1033

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