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Official data from INPI

CONJUNTO DE ESTRADO PARA UM FILTRO DE TAMBOR ROTATIVO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906827

Type

Invention Patent

Filing

12/28/1989

Publication

08/21/1990

Progress at the INPI

  1. Filing12/28/89
  2. Publication08/21/90
  3. Examination11/03/92
  4. Allowance12/31/96
  5. Grant09/30/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Beloit Technologies,Inc.

US

Ingersoll-Rand Company

US

See this company's full portfolio

Inventors

A. T. (pessoa física)

US

O. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

291.564 · 12/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 28/12/2009

05/21/2013

RPI 2211

Republicação - titular

#25.11

Referência: RPI1404 de 28.10.1997@código 25.1 - item (73)

10/06/1998

RPI 1450

Transferência deferida

#25.1

10/28/1997

RPI 1404

Concessão da patente

#16.1

09/30/1997

RPI 1400

Notificação para pagamento de retribuição

#13.1

05/06/1997

RPI 1379

Deferimento

#9.1

12/31/1996

RPI 1361

Exigência - art. 36 da LPI

#6.1

01/30/1996

RPI 1313

Solicitação de exame técnico

#4.1

11/03/1992

RPI 1144

Publicação do pedido de patente

#3.1

08/21/1990

RPI 1029

Pedido de patente depositado

#2.1

05/01/1990

RPI 1016

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