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Official data from INPI

TAMPA PARA VEDAR E ISOLAR A EXTREMIDADE ABERTA DE UM RECIPIENTE CILÍNDRICO, E PILHA ELETROQUÍMICA VEDADA

Arquivada/ExtintaInvention PatentPCT · US1989001365

Application data

Number

PI8907413

Type

Invention Patent

Filing

03/31/1989

Publication

04/02/1991

PCT

US1989001365

Progress at the INPI

  1. Filing03/31/89
  2. Publication04/02/91
  3. Examination02/11/92
  4. Allowance08/18/98
  5. Grant12/29/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: 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: 12/18/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Duracell Inc.

US

Duracell International Inc

US

The Gillette Company

US

See this company's full portfolio

Inventors

B. W. (pessoa física)

GB

J. P. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8810651.3 · 05/05/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 31/03/2009

12/18/2012

RPI 2189

Transferência deferida

#25.1

Transferido de: Duracell Inc.

03/09/2011

RPI 2096

Alteração de nome deferida

#25.4

Alterado de: Duracell International Inc.

09/23/2008

RPI 1968

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

08/18/1998

RPI 1443

Exigência - art. 36 da LPI

#6.1

01/06/1998

RPI 1411

Solicitação de exame técnico

#4.1

02/11/1992

RPI 1106

Notificação de entrada na fase nacional - PCT

#1.3

04/02/1991

RPI 1061

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