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Official data from INPI

PERMUTADOR TÉRMICO DE ONDA SENOIDAL LANÇADO.

PublicadaInvention Patent

Application data

Number

PI8806326

Type

Invention Patent

Filing

12/01/1988

Publication

08/15/1989

Progress at the INPI

  1. Filing12/01/88
  2. Publication08/15/89
  3. Examination04/17/90
  4. Allowance03/09/93
  5. Grant09/28/93
  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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

See this company's full portfolio

Inventors

P. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

127.837 · 12/02/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/15/1989

RPI 982

Pedido de patente depositado

#2.1

04/04/1989

RPI 963

Carta-patente expirada

#21.1

Patente extinta em 01/12/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

09/28/1993

RPI 1191

Notificação para pagamento de retribuição

#13.1

06/29/1993

RPI 1178

Deferimento

#9.1

03/09/1993

RPI 1162

102

12/08/1992

RPI 1149

Pedido de recurso

#12.3

06/16/1992

RPI 1124

11.3

03/10/1992

RPI 1110

Exigência - art. 36 da LPI

#6.1

08/27/1991

RPI 1082

Exigência - art. 36 da LPI

#6.1

03/05/1991

RPI 1057

Pedido de certificado de adição de invenção

#5.1

08/07/1990

RPI 1027

Solicitação de exame técnico

#4.1

04/17/1990

RPI 1014

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