Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

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Application data

Number

PI7408403

Type

Invention Patent

Filing

Publication

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Progress at the INPI

Filing
Publication
Examination
Allowance
Grant05/26/81
Expired12/31/24

The letters patent expired on 12/31/2024: 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: 08/02/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ITERPA S/A

SP, BR

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

320

08/02/1983

RPI 667

201

01/18/1983

RPI 639

Pedido de licença voluntária

#17.1

07/13/1982

RPI 612

Concessão da patente

#16.1

05/26/1981

RPI 553

Carta-patente expirada

#21.1

PATENTE EXTINTA EM 08/10/1989

12/31/2024

RPI 2817

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