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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE TRIALCOXISSILANO

PublicadaInvention Patent

Application data

Number

PI8801506

Type

Invention Patent

Filing

03/30/1988

Publication

11/08/1988

Progress at the INPI

  1. Filing03/30/88
  2. Publication11/08/88
  3. Examination09/11/90
  4. Allowance06/06/95
  5. Grant04/29/97
  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: 11/08/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OSi Specialties, Inc

US

U. C. (pessoa física)

US

See this company's full portfolio

Inventors

F. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

033.017 · 03/31/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

11/08/1988

RPI 942

Carta-patente expirada

#21.1

Patente extinta em 30/03/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/29/1997

RPI 1378

15.15

11/19/1996

RPI 1355

14.1

03/19/1996

RPI 1320

9.1.3

10/31/1995

RPI 1300

Deferimento

#9.1

06/06/1995

RPI 1279

Exigência - art. 36 da LPI

#6.1

09/20/1994

RPI 1242

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

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