Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Talk to an expert

Application data

Number

PI8303085

Type

Invention Patent

Filing

06/10/1983

Publication

01/31/1984

View on INPI

Progress at the INPI

Filing06/10/83
Publication01/31/84
Examination03/04/86
Allowance08/11/87
Grant03/29/88
Expired07/01/08

The letters patent expired on 07/01/2008: 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Western States Machine Company

Inventors

H. J. (pessoa física)

H. L. (pessoa física)

Technical data

IPC Classification

B04B 9/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Exigência - art. 36 da LPI

#6.1

09/09/1986

RPI 829

Solicitação de exame técnico

#4.1

03/04/1986

RPI 802

Publicação do pedido de patente

#3.1

01/31/1984

RPI 693

Pedido de patente depositado

#2.1

07/26/1983

RPI 666

Carta-patente expirada

#21.1

Patente extinta em 10/06/98

07/01/2008

RPI 1956

From the same holder

APARELHAGEM CENTRÍFUGA

Patent monitoring

Track this patent in real time.

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