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Official data from INPI

PROCESSO PARA PREPARAR A SUPERFÍCIE DE DENTINA OU ESMALTE PARA ADESÃO DE MATERIAIS COMPÓSITOS OU RESINAS.

Em AnáliseInvention PatentPCT · US1984001109

Application data

Number

PI8406987

Type

Invention Patent

Filing

07/16/1984

Publication

07/02/1985

PCT

US1984001109

Progress at the INPI

  1. Filing07/16/84
  2. Publication07/02/85
  3. Examination06/30/87
  4. Allowance03/02/93
  5. Grant08/31/93
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Dental Association Health Foundation

US

Inventors

R. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

516.956 · 07/25/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/30/1987

RPI 871

Notificação de entrada na fase nacional - PCT

#1.3

07/02/1985

RPI 767

Carta-patente expirada

#21.1

Patente extinta em 16/07/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

06/15/1993

RPI 1176

Deferimento

#9.1

03/02/1993

RPI 1161

Exigência - art. 36 da LPI

#6.1

04/28/1992

RPI 1117

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