Concessão da patente
#16.1
03/31/1987
RPI 858
Back to search
Official data from INPI
RELIGADOR TRIFASICO AUTO SUFICIENTE INTERRUPCAO A VACUO
ConcedidaInvention Patent
Application data
Number
PI8303643Type
Invention Patent
Filing
07/07/1983
Publication
02/20/1985
Progress at the INPI
- Filing07/07/83
- Publication02/20/85
- Examination
- Allowance08/12/86
- Grant03/31/87
- Expired08/19/08
The letters patent expired on 08/19/2008: 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: 03/31/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
WESTINGHOUSE DO BRASIL S A DIV [BR]
Inventors
R. E. (pessoa física)
T. I. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
12/02/1986
RPI 841
Deferimento
#9.1
08/12/1986
RPI 825
4.1.2
09/10/1985
RPI 777
Publicação do pedido de patente
#3.1
02/20/1985
RPI 748
Pedido de patente depositado
#2.1
08/23/1983
RPI 670
Carta-patente expirada
#21.1
Patente extinta em 07/07/98
08/19/2008
RPI 1963
Pedido de licença compulsória
#20.1
06/21/1994
RPI 1229
20.4
06/14/1994
RPI 1228
20.6
10/05/1993
RPI 1192
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.