Carta-patente expirada
#21.1
Patente extinta em 22/03/2005
05/18/2010
RPI 2054
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Official data from INPI
MECANISMO COMUTADOR DE TECLA E ATUADOR DE MEMBRANA
Arquivada/ExtintaInvention Patent
Application data
Number
PI9001337Type
Invention Patent
Filing
03/22/1990
Publication
04/02/1991
Progress at the INPI
- Filing03/22/90
- Publication04/02/91
- Examination06/22/93
- Allowance06/13/95
- Grant03/26/96
- Expired05/18/10
The letters patent expired on 05/18/2010: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 05/18/2010. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
I. C. (pessoa física)
US
L. I. (pessoa física)
US
Inventors
D. B. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
03/26/1996
RPI 1321
9.1.3
08/29/1995
RPI 1291
Deferimento
#9.1
06/13/1995
RPI 1280
14.4
10/26/1993
RPI 1195
Solicitação de exame técnico
#4.1
06/22/1993
RPI 1177
Publicação do pedido de patente
#3.1
04/02/1991
RPI 1061
Pedido de patente depositado
#2.1
06/05/1990
RPI 1021
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