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Official data from INPI

BOMBA DE ANEL DE LÍQUIDO EM DOIS ESTÁGIOS

PublicadaInvention Patent

Application data

Number

PI8800037

Type

Invention Patent

Filing

01/07/1988

Publication

08/02/1988

Progress at the INPI

  1. Filing01/07/88
  2. Publication08/02/88
  3. Examination11/27/90
  4. Allowance08/03/93
  5. Grant03/29/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 08/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Nash Engineering Company

US

See this company's full portfolio

Inventors

W. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

001.416 · 01/08/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/02/1988

RPI 928

Pedido de patente depositado

#2.1

04/26/1988

RPI 914

Carta-patente expirada

#21.1

Patente extinta em 07/01/2003

09/02/2008

RPI 1965

20.7

09/19/1995

RPI 1294

Concessão da patente

#16.1

03/29/1994

RPI 1217

Deferimento

#9.1

08/03/1993

RPI 1183

15.17

10/29/1991

RPI 1091

15.5

08/27/1991

RPI 1082

Solicitação de exame técnico

#4.1

11/27/1990

RPI 1043

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