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Official data from INPI

Creme dental de fluoreto de sódio-gel de sílica hidratado.

IndeferidaInvention Patent

Application data

Number

PI8105940

Type

Invention Patent

Filing

09/17/1981

Publication

09/08/1982

Progress at the INPI

Under appeal
  1. Filing09/17/81
  2. Publication09/08/82
  3. Examination10/30/84
  4. Refused05/07/85
  5. Grant
  6. In force

The application was refused by the INPI on 05/07/1985. The invention was never patented.

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Latest action published by the INPI: 05/07/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R. Grace & Co.

US

See this company's full portfolio

Inventors

G. R. (pessoa física)

Technical data

IPC Classification

Priority claims

US

223.555 · 01/09/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

05/07/1985

RPI 759

Solicitação de exame técnico

#4.1

10/30/1984

RPI 732

Publicação do pedido de patente

#3.1

09/08/1982

RPI 620

Pedido de patente depositado

#2.1

11/03/1981

RPI 576

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era A61K 7/18.

03/27/2018

RPI 2464

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