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Official data from INPI

LENTE DE CONTACTO FEITA A PARTIR DE UM COPOLÍMERO

PublicadaInvention Patent

Application data

Number

PI8800368

Type

Invention Patent

Filing

01/29/1988

Publication

09/20/1988

Progress at the INPI

  1. Filing01/29/88
  2. Publication09/20/88
  3. Examination12/18/90
  4. Allowance07/18/95
  5. Grant02/27/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bausch & Lomb Incorporated

US

See this company's full portfolio

Inventors

W. D. (pessoa física)

US

Technical data

Priority claims

US

010.926 · 02/05/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/20/1988

RPI 935

Pedido de patente depositado

#2.1

05/03/1988

RPI 915

Carta-patente expirada

#21.1

Patente extinta em 29/01/2003

09/02/2008

RPI 1965

Alteração de sede deferida

#25.7

Alterada a sede conforme solicitado na petição 024306/RJ de 14/07/00.

10/10/2000

RPI 1553

Concessão da patente

#16.1

02/27/1996

RPI 1317

Notificação para pagamento de retribuição

#13.1

11/28/1995

RPI 1304

Deferimento

#9.1

07/18/1995

RPI 1285

Exigência - art. 36 da LPI

#6.1

06/28/1994

RPI 1230

Solicitação de exame técnico

#4.1

12/18/1990

RPI 1046

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