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Official data from INPI

RECHEIO ESTRUTURADO DE TORRE PARA CONTATO VAPOR/LÍQUIDO

PublicadaInvention Patent

Application data

Number

PI8706454

Type

Invention Patent

Filing

11/30/1987

Publication

07/12/1988

Progress at the INPI

  1. Filing11/30/87
  2. Publication07/12/88
  3. Examination08/28/90
  4. Allowance12/23/97
  5. Grant12/29/98
  6. Expired12/11/12

The letters patent expired on 12/11/2012: 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: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

4900 Singleton,L.P.

US

Glitsch, Inc

US

Koch (Cyprus) Limited

US

See this company's full portfolio

Inventors

G. C. (pessoa física)

US

M. A. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

936,288 · 12/01/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/12/1988

RPI 925

Pedido de patente depositado

#2.1

03/01/1988

RPI 906

Carta-patente expirada

#21.1

Patente extinta em 29/12/2008

12/11/2012

RPI 2188

Transferência deferida

#25.1

Transferido de: 4900 Singleton, LP.

06/22/1999

RPI 1485

Transferência deferida

#25.1

Transferido de: Glitsch, Inc.

03/09/1999

RPI 1470

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

12/23/1997

RPI 1409

Exigência - art. 36 da LPI

#6.1

01/28/1997

RPI 1365

Conhecimento de parecer técnico

#7.1

12/12/1995

RPI 1306

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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