(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA FORMAR BATERIAS ALCALINAS E APARELHO PARA DIMENSIONAR SEPARADORES TERMOPLÁSTICOS DE BATERIA

PublicadaInvention Patent

Application data

Number

PI8701667

Type

Invention Patent

Filing

04/08/1987

Publication

01/05/1988

Progress at the INPI

  1. Filing04/08/87
  2. Publication01/05/88
  3. Examination08/21/90
  4. Allowance03/07/95
  5. Grant11/28/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 01/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Duracell International Inc

US

See this company's full portfolio

Inventors

C. T. (pessoa física)

US

W. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

849.974 · 04/10/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/05/1988

RPI 898

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Carta-patente expirada

#21.1

Patente extinta em 08/04/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/28/1995

RPI 1304

Notificação para pagamento de retribuição

#13.1

08/08/1995

RPI 1288

Deferimento

#9.1

03/07/1995

RPI 1266

Exigência - art. 36 da LPI

#6.1

08/16/1994

RPI 1237

Solicitação de exame técnico

#4.1

08/21/1990

RPI 1029

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.