Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM POLÍMERO HIDROGENADO FUNCIONALIZADO

PublicadaInvention Patent

Talk to an expert

Application data

Number

PI8803697

Type

Invention Patent

Filing

07/25/1988

Publication

02/14/1989

View on INPI

Progress at the INPI

Filing07/25/88
Publication02/14/89
Examination03/26/91
Allowance10/03/95
Grant04/30/96
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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V.

See this company's full portfolio

Inventors

C. W. (pessoa física)

Technical data

IPC Classification

C08F 8/04

Priority claims

077,827 · 07/27/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/14/1989

RPI 956

Pedido de patente depositado

#2.1

12/27/1988

RPI 949

Carta-patente expirada

#21.1

Patente extinta em 25/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

10/03/1995

RPI 1296

Exigência - art. 36 da LPI

#6.1

02/14/1995

RPI 1263

Solicitação de exame técnico

#4.1

03/26/1991

RPI 1060

From the same holder

112026019974 112026020006 112026019071 112026019180 112026018705 112026017481 112026015843 112026015809

Same category

PP1101201 PP1101199 "COMPOSTO, PROCESSO PARA A PREPARAÇÃO DO SAL DE Na DO (-)-ENANTIOMERO DE OMEPRAZOL, PREPARAÇÃO FARMACÉUTICA E USO DE UM COMPOSTO.PP1101197 PROTEÍNAS QUE LIGAM TNF PP1101194 DERIVADOS CONDENSADOS DO BENZOPIRROL COMO ANTAGONISTAS RECEPTORES DO 5-HT4 PP1101192

Explore category

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.