(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO E APARELHO PARA CONTROLAR A OPERAÇÃO DE UM SISTEMA COMPRESSOR

Arquivada/ExtintaInvention Patent

Application data

Number

PI9002246

Type

Invention Patent

Filing

05/14/1990

Publication

08/13/1991

Progress at the INPI

  1. Filing05/14/90
  2. Publication08/13/91
  3. Examination05/11/93
  4. Allowance03/15/94
  5. Grant11/29/94
  6. Expired05/18/10

The letters patent expired on 05/18/2010: 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: 05/18/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Elliott Turbomachinery Co , Inc

US

Elliott Turbomachinery Co., Inc

US

Inventors

B. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

351,800 · 05/15/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/05/2005

05/18/2010

RPI 2054

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

06/28/1994

RPI 1230

Deferimento

#9.1

03/15/1994

RPI 1215

Solicitação de exame técnico

#4.1

05/11/1993

RPI 1171

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

09/25/1990

RPI 1034

Patent monitoring

Track this patent in real time.

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