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Official data from INPI

MÉTODO DE SÍNTESE DE ORTOSSILICATOS TETRA-ALQUÍLICOS.

Em AnáliseInvention Patent

Application data

Number

PI8405930

Type

Invention Patent

Filing

11/21/1984

Publication

09/10/1985

Progress at the INPI

Awaiting grant fee payment
  1. Filing11/21/84
  2. Publication09/10/85
  3. Examination10/29/86
  4. Allowance09/25/90
  5. Grant
  6. In force

The application was allowed by the INPI on 09/25/1990. The grant of the letters patent is being processed.

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Latest action published by the INPI: 10/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

C. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

554.292 · 11/22/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/29/1986

RPI 836

Publicação do pedido de patente

#3.1

09/10/1985

RPI 777

Pedido de patente depositado

#2.1

02/12/1985

RPI 747

Republicação - classificação IPC

#15.11

09/24/1991

RPI 1086

Retificação

#15.3

01/15/1991

RPI 1050

Deferimento

#9.1

09/25/1990

RPI 1034

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