Official data from INPI

PROCESSO DE DESIDROCICLIZACAO DE HIDROCARBONETOS ALIFATICOS

Em AnáliseInvention Patent

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Application data

Number

PI7605944

Type

Invention Patent

Filing

09/10/1975

Publication

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Progress at the INPI

Filing09/10/75
Publication
Examination
Allowance
Grant06/29/82
Expired07/20/93

The letters patent expired on 07/20/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. P. (pessoa física)

Inventors

B. J. (pessoa física)

N. J. (pessoa física)

Technical data

IPC Classification

C07C 15/00 C07C 15/02 C07C 15/04 C07C 5/393 C07C 5/41 C07C 67/00 C10G 35/00 C10G 35/06 C10G 35/095

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

09/02/1986

RPI 828

Concessão da patente

#16.1

06/29/1982

RPI 610

Notificação para pagamento de retribuição

#13.1

11/17/1981

RPI 578

Carta-patente expirada

#21.1

07/20/1993

RPI 1181

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