Concessão da patente
#16.1
06/21/1983
RPI 661
The letters patent expired on 11/30/1993: 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: 06/21/1983. We update with every new RPI gazette, published weekly.
Applicants
A. C. (pessoa física)
Inventors
H. B. (pessoa física)
H. D. (pessoa física)
IPC Classification
Priority claims
US
793.848 · 05/04/1977
US
824.637 · 08/15/1977
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/21/1983
RPI 661
#9.1
03/01/1983
RPI 645
12/15/1981
RPI 582
#21.1
11/30/1993
RPI 1200
From the same holder
Same category
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