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Official data from INPI

ATENUADOR DE PULSOS DE SUCÇÃO

ConcedidaInvention Patent

Application data

Number

PI8503647

Type

Invention Patent

Filing

08/01/1985

Publication

05/06/1986

Progress at the INPI

  1. Filing08/01/85
  2. Publication05/06/86
  3. Examination08/05/86
  4. Allowance01/17/89
  5. Grant09/26/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

Carrier Corporation,

US

See this company's full portfolio

Inventors

J. B. (pessoa física)

US

N. D. (pessoa física)

US

T. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

637.644 · 08/03/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/17/1989

RPI 952

Republicação - classificação IPC

#15.11

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

07/26/1988

RPI 927

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

05/06/1986

RPI 811

Pedido de patente depositado

#2.1

10/08/1985

RPI 781

Carta-patente expirada

#21.1

Patente extinta em 01/08/2000

07/15/2008

RPI 1958

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