Pedido de licença compulsória
#20.1
11/11/1986
RPI 838
Back to search
Application data
Number
PI8207435Type
Invention Patent
Filing
12/22/1982
Publication
10/18/1983
Progress at the INPI
- Filing12/22/82
- Publication10/18/83
- Examination02/28/84
- Allowance01/15/85
- Grant07/30/85
- Expired07/01/08
The letters patent expired on 07/01/2008: 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: 11/11/1986. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Electrolyser Inc.
CA
Inventors
B. T. (pessoa física)
D. J. (pessoa física)
R. L. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
20.4
11/04/1986
RPI 837
Concessão da patente
#16.1
07/30/1985
RPI 771
Notificação para pagamento de retribuição
#13.1
05/07/1985
RPI 759
Deferimento
#9.1
01/15/1985
RPI 743
Exigência - art. 36 da LPI
#6.1
08/14/1984
RPI 721
Solicitação de exame técnico
#4.1
02/28/1984
RPI 697
Publicação do pedido de patente
#3.1
10/18/1983
RPI 678
Pedido de patente depositado
#2.1
02/16/1983
RPI 643
Carta-patente expirada
#21.1
Patente extinta em 22/12/97
07/01/2008
RPI 1956
Related
Patent monitoring
Track this patent in real time.
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.